21013322410 has 16 divisors (see below), whose sum is σ = 39044109312. Its totient is φ = 8134189200.

The previous prime is 21013322381. The next prime is 21013322453. The reversal of 21013322410 is 1422331012.

It is a happy number.

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, 33892146 + ... + 33892765.

It is an arithmetic number, because the mean of its divisors is an integer number (2440256832).

Almost surely, 2^21013322410 is an apocalyptic number.

21013322410 is a deficient number, since it is larger than the sum of its proper divisors (18030786902).

21013322410 is a wasteful number, since it uses less digits than its factorization.

21013322410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67784949.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21013322410 its reverse (1422331012), we get a palindrome (22435653422).

The spelling of 21013322410 in words is "twenty-one billion, thirteen million, three hundred twenty-two thousand, four hundred ten".