22143022506 has 36 divisors (see below), whose sum is σ = 52734558786. Its totient is φ = 6710006160.

The previous prime is 22143022487. The next prime is 22143022537. The reversal of 22143022506 is 60522034122.

It is a happy number.

22143022506 is a `hidden beast` number, since 2 + 2 + 1 + 430 + 225 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14627693025 + 7515329481 = 120945^2 + 86691^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22143022506.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5081161 + ... + 5085516.

Almost surely, 2^22143022506 is an apocalyptic number.

22143022506 is an abundant number, since it is smaller than the sum of its proper divisors (30591536280).

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

22143022506 is a wasteful number, since it uses less digits than its factorization.

22143022506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166707 (or 10166693 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 22143022506 its reverse (60522034122), we get a palindrome (82665056628).

The spelling of 22143022506 in words is "twenty-two billion, one hundred forty-three million, twenty-two thousand, five hundred six".