21032212332 has 24 divisors (see below), whose sum is σ = 49081346496. Its totient is φ = 7009853968.

The previous prime is 21032212319. The next prime is 21032212351. The reversal of 21032212332 is 23321223012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21032212299 and 21032212308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7398 + ... + 205229.

It is an arithmetic number, because the mean of its divisors is an integer number (2045056104).

Almost surely, 2^21032212332 is an apocalyptic number.

It is an amenable number.

21032212332 is an abundant number, since it is smaller than the sum of its proper divisors (28049134164).

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

21032212332 is a wasteful number, since it uses less digits than its factorization.

21032212332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220877 (or 220875 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21032212332 its reverse (23321223012), we get a palindrome (44353435344).

The spelling of 21032212332 in words is "twenty-one billion, thirty-two million, two hundred twelve thousand, three hundred thirty-two".