21412021412 has 36 divisors (see below), whose sum is σ = 38563675668. Its totient is φ = 10398960000.

The previous prime is 21412021391. The next prime is 21412021427.

21412021412 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 15014581156 + 6397440256 = 122534^2 + 79984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2157662 + ... + 2167562.

It is an arithmetic number, because the mean of its divisors is an integer number (1071213213).

Almost surely, 2^21412021412 is an apocalyptic number.

It is an amenable number.

21412021412 is a deficient number, since it is larger than the sum of its proper divisors (17151654256).

21412021412 is a wasteful number, since it uses less digits than its factorization.

21412021412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10160 (or 10057 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 214120 and 21412, that added together give a palindrome (235532).

The spelling of 21412021412 in words is "twenty-one billion, four hundred twelve million, twenty-one thousand, four hundred twelve".