351312212232 has 32 divisors (see below), whose sum is σ = 975867256800. Its totient is φ = 117104070672.

The previous prime is 351312212213. The next prime is 351312212239. The reversal of 351312212232 is 232212213153.

351312212232 is a `hidden beast` number, since 3 + 513 + 1 + 22 + 122 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 351312212196 and 351312212205.

It is not an unprimeable number, because it can be changed into a prime (351312212239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 813222498 + ... + 813222929.

It is an arithmetic number, because the mean of its divisors is an integer number (30495851775).

Almost surely, 2^351312212232 is an apocalyptic number.

It is an amenable number.

351312212232 is an abundant number, since it is smaller than the sum of its proper divisors (624555044568).

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

351312212232 is a wasteful number, since it uses less digits than its factorization.

351312212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626445442 (or 1626445432 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 351312212232 its reverse (232212213153), we get a palindrome (583524425385).

The spelling of 351312212232 in words is "three hundred fifty-one billion, three hundred twelve million, two hundred twelve thousand, two hundred thirty-two".