100212232131 has 56 divisors (see below), whose sum is σ = 166687571520. Its totient is φ = 59705002800.

The previous prime is 100212232123. The next prime is 100212232187. The reversal of 100212232131 is 131232212001.

100212232131 is a `hidden beast` number, since 100 + 212 + 2 + 321 + 31 = 666.

It is not a de Polignac number, because 100212232131 - 2³ = 100212232123 is a prime.

It is a super-2 number, since 2×100212232131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100212232031) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 367216 + ... + 579026.

Almost surely, 2^100212232131 is an apocalyptic number.

100212232131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100212232131 is a deficient number, since it is larger than the sum of its proper divisors (66475339389).

100212232131 is an equidigital number, since it uses as much as digits as its factorization.

100212232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211899 (or 211884 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 100212232131 its reverse (131232212001), we get a palindrome (231444444132).

The spelling of 100212232131 in words is "one hundred billion, two hundred twelve million, two hundred thirty-two thousand, one hundred thirty-one".