12212400031432 has 16 divisors (see below), whose sum is σ = 22898363846400. Its totient is φ = 6106169672400.

The previous prime is 12212400031367. The next prime is 12212400031471. The reversal of 12212400031432 is 23413000421221.

It is a junction number, because it is equal to n+sod(n) for n = 12212400031397 and 12212400031406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2034444 + ... + 5344507.

It is an arithmetic number, because the mean of its divisors is an integer number (1431147740400).

Almost surely, 2^{12212400031432} is an apocalyptic number.

It is an amenable number.

12212400031432 is a deficient number, since it is larger than the sum of its proper divisors (10685963814968).

12212400031432 is a wasteful number, since it uses less digits than its factorization.

12212400031432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585836 (or 7585832 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12212400031432 its reverse (23413000421221), we get a palindrome (35625400452653).

The spelling of 12212400031432 in words is "twelve trillion, two hundred twelve billion, four hundred million, thirty-one thousand, four hundred thirty-two".