21321100020114 has 24 divisors (see below), whose sum is σ = 46275778633500. Its totient is φ = 7094716121088.

The previous prime is 21321100020053. The next prime is 21321100020137. The reversal of 21321100020114 is 41102000112312.

It can be written as a sum of positive squares in 2 ways, for example, as 18282935981025 + 3038164039089 = 4275855^2 + 1743033^2 .

It is a super-2 number, since 2×21321100020114² (a number of 27 digits) contains 22 as substring.

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

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, 1026424239 + ... + 1026445010.

Almost surely, 2^{21321100020114} is an apocalyptic number.

21321100020114 is an abundant number, since it is smaller than the sum of its proper divisors (24954678613386).

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

21321100020114 is a wasteful number, since it uses less digits than its factorization.

21321100020114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052869834 (or 2052869831 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21321100020114 its reverse (41102000112312), we get a palindrome (62423100132426).

The spelling of 21321100020114 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred million, twenty thousand, one hundred fourteen".