22120129724 has 24 divisors (see below), whose sum is σ = 48262101888. Its totient is φ = 8618232240.

The previous prime is 22120129699. The next prime is 22120129729. The reversal of 22120129724 is 42792102122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120129729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35908994 + ... + 35909609.

It is an arithmetic number, because the mean of its divisors is an integer number (2010920912).

Almost surely, 2^22120129724 is an apocalyptic number.

It is an amenable number.

22120129724 is an abundant number, since it is smaller than the sum of its proper divisors (26141972164).

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

22120129724 is a wasteful number, since it uses less digits than its factorization.

22120129724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71818625 (or 71818623 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 22120129724 in words is "twenty-two billion, one hundred twenty million, one hundred twenty-nine thousand, seven hundred twenty-four".