20122705392 has 40 divisors (see below), whose sum is σ = 52230049920. Its totient is φ = 6675775680.

The previous prime is 20122705321. The next prime is 20122705409. The reversal of 20122705392 is 29350722102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983292 + ... + 1003547.

It is an arithmetic number, because the mean of its divisors is an integer number (1305751248).

Almost surely, 2^20122705392 is an apocalyptic number.

It is an amenable number.

20122705392 is an abundant number, since it is smaller than the sum of its proper divisors (32107344528).

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

20122705392 is a wasteful number, since it uses less digits than its factorization.

20122705392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987061 (or 1987055 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 20122705392 in words is "twenty billion, one hundred twenty-two million, seven hundred five thousand, three hundred ninety-two".