21101102032200 has 48 divisors (see below), whose sum is σ = 65413416301680. Its totient is φ = 5626960541760.

The previous prime is 21101102032183. The next prime is 21101102032217. The reversal of 21101102032200 is 223020110112.

It is an interprime number because it is at equal distance from previous prime (21101102032183) and next prime (21101102032217).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21101102032200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17584251094 + ... + 17584252293.

It is an arithmetic number, because the mean of its divisors is an integer number (1362779506285).

Almost surely, 2^{21101102032200} is an apocalyptic number.

21101102032200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21101102032200 is an abundant number, since it is smaller than the sum of its proper divisors (44312314269480).

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

21101102032200 is a wasteful number, since it uses less digits than its factorization.

21101102032200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35168503406 (or 35168503397 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21101102032200 its reverse (223020110112), we get a palindrome (21324122142312).

The spelling of 21101102032200 in words is "twenty-one trillion, one hundred one billion, one hundred two million, thirty-two thousand, two hundred".