21110101111000 has 64 divisors (see below), whose sum is σ = 53888330864160. Its totient is φ = 7676400400000.

The previous prime is 21110101110919. The next prime is 21110101111019. The reversal of 21110101111000 is 11110101112.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 959539051 + ... + 959561050.

Almost surely, 2^{21110101111000} is an apocalyptic number.

21110101111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110101111000 is an abundant number, since it is smaller than the sum of its proper divisors (32778229753160).

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

21110101111000 is a wasteful number, since it uses less digits than its factorization.

21110101111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919100133 (or 1919100119 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 21110101111000 its reverse (11110101112), we get a palindrome (21121211212112).

The spelling of 21110101111000 in words is "twenty-one trillion, one hundred ten billion, one hundred one million, one hundred eleven thousand".