20222515732 has 6 divisors (see below), whose sum is σ = 35389402538. Its totient is φ = 10111257864.

The previous prime is 20222515717. The next prime is 20222515757. The reversal of 20222515732 is 23751522202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18434579076 + 1787936656 = 135774^2 + 42284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20222515694 and 20222515703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527814463 + ... + 2527814470.

Almost surely, 2^20222515732 is an apocalyptic number.

It is an amenable number.

20222515732 is a deficient number, since it is larger than the sum of its proper divisors (15166886806).

20222515732 is a wasteful number, since it uses less digits than its factorization.

20222515732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055628937 (or 5055628935 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 20222515732 in words is "twenty billion, two hundred twenty-two million, five hundred fifteen thousand, seven hundred thirty-two".