21214062426610 has 16 divisors (see below), whose sum is σ = 38428530920856. Its totient is φ = 8431576403328.

The previous prime is 21214062426593. The next prime is 21214062426637. The reversal of 21214062426610 is 1662426041212.

It can be written as a sum of positive squares in 4 ways, for example, as 17209745262369 + 4004317164241 = 4148463^2 + 2001079^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21214062426610.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6756069267 + ... + 6756072406.

Almost surely, 2^{21214062426610} is an apocalyptic number.

21214062426610 is a deficient number, since it is larger than the sum of its proper divisors (17214468494246).

21214062426610 is a wasteful number, since it uses less digits than its factorization.

21214062426610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512141837.

The product of its (nonzero) digits is 55296, while the sum is 37.

Adding to 21214062426610 its reverse (1662426041212), we get a palindrome (22876488467822).

The spelling of 21214062426610 in words is "twenty-one trillion, two hundred fourteen billion, sixty-two million, four hundred twenty-six thousand, six hundred ten".