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102102212222 = 2972516313323
BaseRepresentation
bin101111100010111000…
…1000001111001111110
3100202112200022210021122
41133011301001321332
53133101131242342
6114523300430542
710243121325053
oct1370561017176
9322480283248
10102102212222
113a33504527a
12179559a8452
1398221c34ba
144d2832502a
1529c8a8c4d2
hex17c5c41e7e

102102212222 has 32 divisors (see below), whose sum is σ = 155641699584. Its totient is φ = 50228640000.

The previous prime is 102102212207. The next prime is 102102212227. The reversal of 102102212222 is 222212201201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102102212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102212227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30724253 + ... + 30727575.

It is an arithmetic number, because the mean of its divisors is an integer number (4863803112).

Almost surely, 2102102212222 is an apocalyptic number.

102102212222 is a deficient number, since it is larger than the sum of its proper divisors (53539487362).

102102212222 is a wasteful number, since it uses less digits than its factorization.

102102212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102102212222 its reverse (222212201201), we get a palindrome (324314413423).

The spelling of 102102212222 in words is "one hundred two billion, one hundred two million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 97 194 251 502 631 1262 3323 6646 24347 48694 61207 122414 158381 316762 322331 644662 834073 1668146 2096813 4193626 15362957 30725914 80905081 161810162 203390861 406781722 526300063 1052600126 51051106111 102102212222