21024366342012 has 72 divisors (see below), whose sum is σ = 61027666277760. Its totient is φ = 6035703253920.

The previous prime is 21024366341969. The next prime is 21024366342127.

21024366342012 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 4 + 3 + 6 + 634 + 2 + 0 + 12 = 666.

21024366342012 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1397146008 + ... + 1397161055.

It is an arithmetic number, because the mean of its divisors is an integer number (847606476080).

Almost surely, 2^{21024366342012} is an apocalyptic number.

21024366342012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21024366342012 is an abundant number, since it is smaller than the sum of its proper divisors (40003299935748).

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

21024366342012 is a wasteful number, since it uses less digits than its factorization.

21024366342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794307103 (or 2794307098 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

It can be divided in two parts, 2102436 and 6342012, that added together give a palindrome (8444448).

The spelling of 21024366342012 in words is "twenty-one trillion, twenty-four billion, three hundred sixty-six million, three hundred forty-two thousand, twelve".