22021470535680 has 3840 divisors, whose sum is σ = 104171252613120. Its totient is φ = 4280706662400.

The previous prime is 22021470535643. The next prime is 22021470535697. The reversal of 22021470535680 is 8653507412022.

22021470535680 is a `hidden beast` number, since 2 + 2 + 0 + 2 + 1 + 470 + 53 + 56 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (3840).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 227025469392 + ... + 227025469488.

It is an arithmetic number, because the mean of its divisors is an integer number (27127930368).

Almost surely, 2^{22021470535680} is an apocalyptic number.

22021470535680 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 22021470535680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52085626306560).

22021470535680 is an abundant number, since it is smaller than the sum of its proper divisors (82149782077440).

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

22021470535680 is a wasteful number, since it uses less digits than its factorization.

22021470535680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 22021470535680 in words is "twenty-two trillion, twenty-one billion, four hundred seventy million, five hundred thirty-five thousand, six hundred eighty".