21022200132 has 12 divisors (see below), whose sum is σ = 49051800336. Its totient is φ = 7007400040.

The previous prime is 21022200131. The next prime is 21022200223. The reversal of 21022200132 is 23100222012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (21022200131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875924994 + ... + 875925017.

It is an arithmetic number, because the mean of its divisors is an integer number (4087650028).

Almost surely, 2^21022200132 is an apocalyptic number.

It is an amenable number.

21022200132 is an abundant number, since it is smaller than the sum of its proper divisors (28029600204).

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

21022200132 is a wasteful number, since it uses less digits than its factorization.

21022200132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751850018 (or 1751850016 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21022200132 its reverse (23100222012), we get a palindrome (44122422144).

The spelling of 21022200132 in words is "twenty-one billion, twenty-two million, two hundred thousand, one hundred thirty-two".