22421674782720 has 416 divisors, whose sum is σ = 79926218433600. Its totient is φ = 5963028627456.

The previous prime is 22421674782719. The next prime is 22421674782781. The reversal of 22421674782720 is 2728747612422.

22421674782720 is a `hidden beast` number, since 2 + 2 + 4 + 2 + 167 + 478 + 2 + 7 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206199726 + ... + 206308434.

Almost surely, 2^{22421674782720} is an apocalyptic number.

22421674782720 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 22421674782720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39963109216800).

22421674782720 is an abundant number, since it is smaller than the sum of its proper divisors (57504543650880).

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

22421674782720 is a wasteful number, since it uses less digits than its factorization.

22421674782720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109120 (or 109092 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 54.

The spelling of 22421674782720 in words is "twenty-two trillion, four hundred twenty-one billion, six hundred seventy-four million, seven hundred eighty-two thousand, seven hundred twenty".