21126422374960 has 240 divisors, whose sum is σ = 57630021156864. Its totient is φ = 7181099380224.

The previous prime is 21126422374943. The next prime is 21126422374973. The reversal of 21126422374960 is 6947322462112.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 720359817 + ... + 720389143.

Almost surely, 2^{21126422374960} is an apocalyptic number.

21126422374960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21126422374960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28815010578432).

21126422374960 is an abundant number, since it is smaller than the sum of its proper divisors (36503598781904).

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

21126422374960 is a wasteful number, since it uses less digits than its factorization.

21126422374960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30928 (or 30915 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 21126422374960 in words is "twenty-one trillion, one hundred twenty-six billion, four hundred twenty-two million, three hundred seventy-four thousand, nine hundred sixty".