21203022332 has 6 divisors (see below), whose sum is σ = 37105289088. Its totient is φ = 10601511164.

The previous prime is 21203022299. The next prime is 21203022341. The reversal of 21203022332 is 23322030212.

It is a super-2 number, since 2×21203022332² (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 as a sum of consecutive naturals, namely, 2650377788 + ... + 2650377795.

It is an arithmetic number, because the mean of its divisors is an integer number (6184214848).

Almost surely, 2^21203022332 is an apocalyptic number.

It is an amenable number.

21203022332 is a deficient number, since it is larger than the sum of its proper divisors (15902266756).

21203022332 is a wasteful number, since it uses less digits than its factorization.

21203022332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300755587 (or 5300755585 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21203022332 its reverse (23322030212), we get a palindrome (44525052544).

The spelling of 21203022332 in words is "twenty-one billion, two hundred three million, twenty-two thousand, three hundred thirty-two".