21037157461122 has 32 divisors (see below), whose sum is σ = 45902660330304. Its totient is φ = 6374422910400.

The previous prime is 21037157461009. The next prime is 21037157461147. The reversal of 21037157461122 is 22116475173012.

It is a super-4 number, since 4×21037157461122⁴ (a number of 54 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10936029 + ... + 12714992.

It is an arithmetic number, because the mean of its divisors is an integer number (1434458135322).

Almost surely, 2^{21037157461122} is an apocalyptic number.

21037157461122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21037157461122 is an abundant number, since it is smaller than the sum of its proper divisors (24865502869182).

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

21037157461122 is a wasteful number, since it uses less digits than its factorization.

21037157461122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23664514.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 21037157461122 in words is "twenty-one trillion, thirty-seven billion, one hundred fifty-seven million, four hundred sixty-one thousand, one hundred twenty-two".