20332222530 has 32 divisors (see below), whose sum is σ = 51667766784. Its totient is φ = 5102989056.

The previous prime is 20332222529. The next prime is 20332222633. The reversal of 20332222530 is 3522223302.

It is a self number, because there is not a number n which added to its sum of digits gives 20332222530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19933042 + ... + 19934061.

It is an arithmetic number, because the mean of its divisors is an integer number (1614617712).

Almost surely, 2^20332222530 is an apocalyptic number.

20332222530 is an abundant number, since it is smaller than the sum of its proper divisors (31335544254).

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

20332222530 is a wasteful number, since it uses less digits than its factorization.

20332222530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39867130.

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 20332222530 its reverse (3522223302), we get a palindrome (23854445832).

The spelling of 20332222530 in words is "twenty billion, three hundred thirty-two million, two hundred twenty-two thousand, five hundred thirty".