21262233226212 has 72 divisors (see below), whose sum is σ = 58748784494400. Its totient is φ = 6430291571520.

The previous prime is 21262233226211. The next prime is 21262233226229.

21262233226212 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 2 + 2 + 3 + 3 + 22 + 621 + 2 = 666.

21262233226212 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 nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (21262233226211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53173087 + ... + 53571462.

It is an arithmetic number, because the mean of its divisors is an integer number (815955340200).

Almost surely, 2^{21262233226212} is an apocalyptic number.

21262233226212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21262233226212 is an abundant number, since it is smaller than the sum of its proper divisors (37486551268188).

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

21262233226212 is a wasteful number, since it uses less digits than its factorization.

21262233226212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106745073 (or 106745068 counting only the distinct ones).

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

The spelling of 21262233226212 in words is "twenty-one trillion, two hundred sixty-two billion, two hundred thirty-three million, two hundred twenty-six thousand, two hundred twelve".