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12101100222210 = 2352380921678401
BaseRepresentation
bin1011000000011000000111…
…0001111011011100000010
31120211212001110222112011220
42300012001301323130002
53041231023124102320
641423100234415510
72356163354510646
oct260060161733402
946755043875156
1012101100222210
11394605866715a
121435335b91596
1369a18a12a18c
142db9a6bd8c26
1515eb9da36e40
hexb0181c7b702

12101100222210 has 64 divisors (see below), whose sum is σ = 30342825711360. Its totient is φ = 3082841907200.

The previous prime is 12101100222209. The next prime is 12101100222227. The reversal of 12101100222210 is 1222200110121.

It is a super-2 number, since 2×121011002222102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101100222210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10280991 + ... + 11397410.

It is an arithmetic number, because the mean of its divisors is an integer number (474106651740).

Almost surely, 212101100222210 is an apocalyptic number.

12101100222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101100222210 is an abundant number, since it is smaller than the sum of its proper divisors (18241725489150).

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

12101100222210 is a wasteful number, since it uses less digits than its factorization.

12101100222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21679243.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12101100222210 its reverse (1222200110121), we get a palindrome (13323300332331).

The spelling of 12101100222210 in words is "twelve trillion, one hundred one billion, one hundred million, two hundred twenty-two thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 809 1618 2427 4045 4854 8090 12135 18607 24270 37214 55821 93035 111642 186070 279105 558210 21678401 43356802 65035203 108392005 130070406 216784010 325176015 498603223 650352030 997206446 1495809669 2493016115 2991619338 4986032230 7479048345 14958096690 17537826409 35075652818 52613479227 87689132045 105226958454 175378264090 263067396135 403370007407 526134792270 806740014814 1210110022221 2016850037035 2420220044442 4033700074070 6050550111105 12101100222210