22130212872 has 32 divisors (see below), whose sum is σ = 55333637280. Its totient is φ = 7375656960.

The previous prime is 22130212861. The next prime is 22130212957. The reversal of 22130212872 is 27821203122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109128 + ... + 237000.

It is an arithmetic number, because the mean of its divisors is an integer number (1729176165).

Almost surely, 2^22130212872 is an apocalyptic number.

It is an amenable number.

22130212872 is an abundant number, since it is smaller than the sum of its proper divisors (33203424408).

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

22130212872 is a wasteful number, since it uses less digits than its factorization.

22130212872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135093 (or 135089 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

Adding to 22130212872 its reverse (27821203122), we get a palindrome (49951415994).

The spelling of 22130212872 in words is "twenty-two billion, one hundred thirty million, two hundred twelve thousand, eight hundred seventy-two".