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12213313431100 = 2252215295672959
BaseRepresentation
bin1011000110111010001000…
…1101010110011000111100
31121020120200210221011101121
42301232202031112120330
53100100331214243400
641550415125120324
72400245202163315
oct261564215263074
947216623834347
1012213313431100
113989701038921
121453031b590a4
136a7931001a32
143031adcd760c
15162a6a0aa21a
hexb1ba235663c

12213313431100 has 36 divisors (see below), whose sum is σ = 26504125849600. Its totient is φ = 4885097592960.

The previous prime is 12213313431061. The next prime is 12213313431113. The reversal of 12213313431100 is 113431331221.

12213313431100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683580 + ... + 4989379.

Almost surely, 212213313431100 is an apocalyptic number.

12213313431100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213313431100 is an abundant number, since it is smaller than the sum of its proper divisors (14290812418500).

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

12213313431100 is a wasteful number, since it uses less digits than its factorization.

12213313431100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694502 (or 5694495 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12213313431100 its reverse (113431331221), we get a palindrome (12326744762321).

The spelling of 12213313431100 in words is "twelve trillion, two hundred thirteen billion, three hundred thirteen million, four hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 21529 43058 86116 107645 215290 430580 538225 1076450 2152900 5672959 11345918 22691836 28364795 56729590 113459180 141823975 283647950 567295900 122133134311 244266268622 488532537244 610665671555 1221331343110 2442662686220 3053328357775 6106656715550 12213313431100