21412112313552 has 40 divisors (see below), whose sum is σ = 55316051254464. Its totient is φ = 7137186541824.

The previous prime is 21412112313541. The next prime is 21412112313569. The reversal of 21412112313552 is 25531321121412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3871828 + ... + 7603635.

Almost surely, 2^{21412112313552} is an apocalyptic number.

It is an amenable number.

21412112313552 is an abundant number, since it is smaller than the sum of its proper divisors (33903938940912).

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

21412112313552 is a wasteful number, since it uses less digits than its factorization.

21412112313552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514347 (or 11514341 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

Adding to 21412112313552 its reverse (25531321121412), we get a palindrome (46943433434964).

The spelling of 21412112313552 in words is "twenty-one trillion, four hundred twelve billion, one hundred twelve million, three hundred thirteen thousand, five hundred fifty-two".