22052021537764 has 27 divisors (see below), whose sum is σ = 39430382798793. Its totient is φ = 10791198781008.

The previous prime is 22052021537753. The next prime is 22052021537773. The reversal of 22052021537764 is 46773512025022.

It is a happy number.

The square root of 22052021537764 is 4695958.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5662543752100 + 16389477785664 = 2379610^2 + 4048392^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 441395074 + ... + 441445030.

Almost surely, 2^{22052021537764} is an apocalyptic number.

22052021537764 is the 4695958-th square number.

It is an amenable number.

22052021537764 is a deficient number, since it is larger than the sum of its proper divisors (17378361261029).

22052021537764 is an frugal number, since it uses more digits than its factorization.

22052021537764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100012 (or 50006 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 22052021537764 in words is "twenty-two trillion, fifty-two billion, twenty-one million, five hundred thirty-seven thousand, seven hundred sixty-four".