21011102332 has 48 divisors (see below), whose sum is σ = 42490435680. Its totient is φ = 8984729600.

The previous prime is 21011102317. The next prime is 21011102389. The reversal of 21011102332 is 23320111012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2216082 + ... + 2225542.

It is an arithmetic number, because the mean of its divisors is an integer number (885217410).

Almost surely, 2^21011102332 is an apocalyptic number.

21011102332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21011102332 is an abundant number, since it is smaller than the sum of its proper divisors (21479333348).

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

21011102332 is a wasteful number, since it uses less digits than its factorization.

21011102332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462 (or 12460 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21011102332 its reverse (23320111012), we get a palindrome (44331213344).

The spelling of 21011102332 in words is "twenty-one billion, eleven million, one hundred two thousand, three hundred thirty-two".