22002131000 has 128 divisors (see below), whose sum is σ = 54621552960. Its totient is φ = 8266752000.

The previous prime is 22002130979. The next prime is 22002131029. The reversal of 22002131000 is 13120022.

It is a happy number.

It is a super-2 number, since 2×22002131000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11746064 + ... + 11747936.

Almost surely, 2^22002131000 is an apocalyptic number.

22002131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27310776480).

22002131000 is an abundant number, since it is smaller than the sum of its proper divisors (32619421960).

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

22002131000 is a wasteful number, since it uses less digits than its factorization.

22002131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 22002131000 its reverse (13120022), we get a palindrome (22015251022).

The spelling of 22002131000 in words is "twenty-two billion, two million, one hundred thirty-one thousand".