21102312114 has 48 divisors (see below), whose sum is σ = 51830251200. Its totient is φ = 6151279968.

The previous prime is 21102312103. The next prime is 21102312139. The reversal of 21102312114 is 41121320112.

It is a super-2 number, since 2×21102312114² (a number of 21 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 23 ways as a sum of consecutive naturals, for example, 2368734 + ... + 2377625.

It is an arithmetic number, because the mean of its divisors is an integer number (1079796900).

Almost surely, 2^21102312114 is an apocalyptic number.

21102312114 is an abundant number, since it is smaller than the sum of its proper divisors (30727939086).

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

21102312114 is a wasteful number, since it uses less digits than its factorization.

21102312114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746399 (or 4746396 counting only the distinct ones).

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

Adding to 21102312114 its reverse (41121320112), we get a palindrome (62223632226).

The spelling of 21102312114 in words is "twenty-one billion, one hundred two million, three hundred twelve thousand, one hundred fourteen".