20722219589052 has 72 divisors (see below), whose sum is σ = 53251075987200. Its totient is φ = 6793622006688.

The previous prime is 20722219589023. The next prime is 20722219589089. The reversal of 20722219589052 is 25098591222702.

20722219589052 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 2 + 2 + 1 + 9 + 589 + 0 + 52 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20722219589052.

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, 18815652 + ... + 19886507.

It is an arithmetic number, because the mean of its divisors is an integer number (739598277600).

Almost surely, 2^{20722219589052} is an apocalyptic number.

It is an amenable number.

20722219589052 is an abundant number, since it is smaller than the sum of its proper divisors (32528856398148).

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

20722219589052 is a wasteful number, since it uses less digits than its factorization.

20722219589052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38702415 (or 38702410 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 20722219589052 in words is "twenty trillion, seven hundred twenty-two billion, two hundred nineteen million, five hundred eighty-nine thousand, fifty-two".