21214026552502 has 32 divisors (see below), whose sum is σ = 37809255816000. Its totient is φ = 8920183656384.

The previous prime is 21214026552497. The next prime is 21214026552571. The reversal of 21214026552502 is 20525562041212.

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, 291701727 + ... + 291774442.

It is an arithmetic number, because the mean of its divisors is an integer number (1181539244250).

Almost surely, 2^{21214026552502} is an apocalyptic number.

21214026552502 is a deficient number, since it is larger than the sum of its proper divisors (16595229263498).

21214026552502 is an equidigital number, since it uses as much as digits as its factorization.

21214026552502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583476245 (or 583476231 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 21214026552502 its reverse (20525562041212), we get a palindrome (41739588593714).

The spelling of 21214026552502 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred fifty-two thousand, five hundred two".