21410271207 has 12 divisors (see below), whose sum is σ = 33304866504. Its totient is φ = 13175551440.

The previous prime is 21410271199. The next prime is 21410271221. The reversal of 21410271207 is 70217201412.

It is a happy number.

21410271207 is a `hidden beast` number, since 21 + 410 + 27 + 1 + 207 = 666.

It is not a de Polignac number, because 21410271207 - 2³ = 21410271199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410271247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91496769 + ... + 91497002.

It is an arithmetic number, because the mean of its divisors is an integer number (2775405542).

Almost surely, 2^21410271207 is an apocalyptic number.

21410271207 is a deficient number, since it is larger than the sum of its proper divisors (11894595297).

21410271207 is a wasteful number, since it uses less digits than its factorization.

21410271207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182993790 (or 182993787 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

Adding to 21410271207 its reverse (70217201412), we get a palindrome (91627472619).

The spelling of 21410271207 in words is "twenty-one billion, four hundred ten million, two hundred seventy-one thousand, two hundred seven".