21012200332 has 6 divisors (see below), whose sum is σ = 36771350588. Its totient is φ = 10506100164.

The previous prime is 21012200327. The next prime is 21012200333. The reversal of 21012200332 is 23300221012.

It is not an unprimeable number, because it can be changed into a prime (21012200333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626525038 + ... + 2626525045.

Almost surely, 2^21012200332 is an apocalyptic number.

It is an amenable number.

21012200332 is a deficient number, since it is larger than the sum of its proper divisors (15759150256).

21012200332 is a wasteful number, since it uses less digits than its factorization.

21012200332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253050087 (or 5253050085 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21012200332 its reverse (23300221012), we get a palindrome (44312421344).

The spelling of 21012200332 in words is "twenty-one billion, twelve million, two hundred thousand, three hundred thirty-two".