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102212331100 = 225211409227189
BaseRepresentation
bin101111100110001010…
…1000110011001011100
3100202211100112101222121
41133030111012121130
53133312324043400
6114542232552324
710245626323255
oct1371425063134
9322740471877
10102212331100
113a391218210
12179868526a4
13983bc6a9b9
144d38bcbb2c
1529d359021a
hex17cc54665c

102212331100 has 72 divisors (see below), whose sum is σ = 242557131600. Its totient is φ = 37077081600.

The previous prime is 102212331077. The next prime is 102212331113. The reversal of 102212331100 is 1133212201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336306 + ... + 563494.

It is an arithmetic number, because the mean of its divisors is an integer number (3368849050).

Almost surely, 2102212331100 is an apocalyptic number.

102212331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102212331100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121278565800).

102212331100 is an abundant number, since it is smaller than the sum of its proper divisors (140344800500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102212331100 is a wasteful number, since it uses less digits than its factorization.

102212331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227623 (or 227616 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102212331100 its reverse (1133212201), we get a palindrome (103345543301).

The spelling of 102212331100 in words is "one hundred two billion, two hundred twelve million, three hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 409 550 818 1100 1636 2045 4090 4499 8180 8998 10225 17996 20450 22495 40900 44990 89980 112475 224950 227189 449900 454378 908756 1135945 2271890 2499079 4543780 4998158 5679725 9996316 11359450 12495395 22718900 24990790 49981580 62476975 92920301 124953950 185840602 249907900 371681204 464601505 929203010 1022123311 1858406020 2044246622 2323007525 4088493244 4646015050 5110616555 9292030100 10221233110 20442466220 25553082775 51106165550 102212331100