21514245253100 has 72 divisors (see below), whose sum is σ = 47825913685200. Its totient is φ = 8395571174400.

The previous prime is 21514245253087. The next prime is 21514245253177. The reversal of 21514245253100 is 135254241512.

It is a super-2 number, since 2×21514245253100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290935931 + ... + 291009869.

Almost surely, 2^{21514245253100} is an apocalyptic number.

21514245253100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21514245253100 is an abundant number, since it is smaller than the sum of its proper divisors (26311668432100).

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

21514245253100 is a wasteful number, since it uses less digits than its factorization.

21514245253100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144963 (or 144956 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 21514245253100 its reverse (135254241512), we get a palindrome (21649499494612).

The spelling of 21514245253100 in words is "twenty-one trillion, five hundred fourteen billion, two hundred forty-five million, two hundred fifty-three thousand, one hundred".