22121000132 has 48 divisors (see below), whose sum is σ = 49928296320. Its totient is φ = 8321376000.

The previous prime is 22121000129. The next prime is 22121000137. The reversal of 22121000132 is 23100012122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (22121000137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229369 + ... + 1247232.

It is an arithmetic number, because the mean of its divisors is an integer number (1040172840).

Almost surely, 2^22121000132 is an apocalyptic number.

22121000132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22121000132 is an abundant number, since it is smaller than the sum of its proper divisors (27807296188).

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

22121000132 is a wasteful number, since it uses less digits than its factorization.

22121000132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476652 (or 2476650 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22121000132 its reverse (23100012122), we get a palindrome (45221012254).

The spelling of 22121000132 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirty-two", and thus it is an aban number.