21110132220020 has 48 divisors (see below), whose sum is σ = 44452342142208. Its totient is φ = 8420995248000.

The previous prime is 21110132219941. The next prime is 21110132220059. The reversal of 21110132220020 is 2002223101112.

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, 180854117 + ... + 180970803.

It is an arithmetic number, because the mean of its divisors is an integer number (926090461296).

Almost surely, 2^{21110132220020} is an apocalyptic number.

21110132220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110132220020 is an abundant number, since it is smaller than the sum of its proper divisors (23342209922188).

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

21110132220020 is a wasteful number, since it uses less digits than its factorization.

21110132220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141320 (or 141318 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21110132220020 its reverse (2002223101112), we get a palindrome (23112355321132).

The spelling of 21110132220020 in words is "twenty-one trillion, one hundred ten billion, one hundred thirty-two million, two hundred twenty thousand, twenty".