21200232202110 has 96 divisors (see below), whose sum is σ = 59364331947648. Its totient is φ = 5218195023360.

The previous prime is 21200232202073. The next prime is 21200232202147. The reversal of 21200232202110 is 1120223200212.

21200232202110 is a `hidden beast` number, since 2 + 1 + 200 + 232 + 20 + 211 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (21200232202073) and next prime (21200232202147).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18588619 + ... + 19696121.

It is an arithmetic number, because the mean of its divisors is an integer number (618378457788).

Almost surely, 2^{21200232202110} is an apocalyptic number.

21200232202110 is an abundant number, since it is smaller than the sum of its proper divisors (38164099745538).

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

21200232202110 is a wasteful number, since it uses less digits than its factorization.

21200232202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123890 (or 1123887 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21200232202110 its reverse (1120223200212), we get a palindrome (22320455402322).

The spelling of 21200232202110 in words is "twenty-one trillion, two hundred billion, two hundred thirty-two million, two hundred two thousand, one hundred ten".