21214036610562 has 32 divisors (see below), whose sum is σ = 43589309040000. Its totient is φ = 6877933699968.

The previous prime is 21214036610539. The next prime is 21214036610609. The reversal of 21214036610562 is 26501663041212.

It is a self number, because there is not a number n which added to its sum of digits gives 21214036610562.

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, 15265987 + ... + 16597542.

It is an arithmetic number, because the mean of its divisors is an integer number (1362165907500).

Almost surely, 2^{21214036610562} is an apocalyptic number.

21214036610562 is an abundant number, since it is smaller than the sum of its proper divisors (22375272429438).

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

21214036610562 is a wasteful number, since it uses less digits than its factorization.

21214036610562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31866570.

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 21214036610562 its reverse (26501663041212), we get a palindrome (47715699651774).

The spelling of 21214036610562 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, six hundred ten thousand, five hundred sixty-two".