21214036610532 has 36 divisors (see below), whose sum is σ = 54177198889996. Its totient is φ = 6998445066240.

The previous prime is 21214036610497. The next prime is 21214036610539. The reversal of 21214036610532 is 23501663041212.

21214036610532 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 4 + 0 + 3 + 6 + 610 + 5 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13114639359396 + 8099397251136 = 3621414^2 + 2845944^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (21214036610539) 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, 3037516069 + ... + 3037523052.

Almost surely, 2^{21214036610532} is an apocalyptic number.

It is an amenable number.

21214036610532 is an abundant number, since it is smaller than the sum of its proper divisors (32963162279464).

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

21214036610532 is a wasteful number, since it uses less digits than its factorization.

21214036610532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075039228 (or 6075039223 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 21214036610532 its reverse (23501663041212), we get a palindrome (44715699651744).

The spelling of 21214036610532 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, six hundred ten thousand, five hundred thirty-two".