21125233252112 has 40 divisors (see below), whose sum is σ = 47277594209952. Its totient is φ = 9037532940800.

The previous prime is 21125233252103. The next prime is 21125233252157.

21125233252112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21125233252112² (a number of 27 digits) contains 22 as substring.

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, 3530283314 + ... + 3530289297.

Almost surely, 2^{21125233252112} is an apocalyptic number.

21125233252112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21125233252112 is an abundant number, since it is smaller than the sum of its proper divisors (26152360957840).

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

21125233252112 is a wasteful number, since it uses less digits than its factorization.

21125233252112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060572647 (or 7060572641 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

It can be divided in two parts, 2112523 and 3252112, that added together give a palindrome (5364635).

The spelling of 21125233252112 in words is "twenty-one trillion, one hundred twenty-five billion, two hundred thirty-three million, two hundred fifty-two thousand, one hundred twelve".