21021022320010 has 32 divisors (see below), whose sum is σ = 40029452784000. Its totient is φ = 7925831622720.

The previous prime is 21021022320007. The next prime is 21021022320037. The reversal of 21021022320010 is 1002322012012.

It is a happy number.

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, 277944501 + ... + 278020120.

It is an arithmetic number, because the mean of its divisors is an integer number (1250920399500).

Almost surely, 2^{21021022320010} is an apocalyptic number.

21021022320010 is a deficient number, since it is larger than the sum of its proper divisors (19008430463990).

21021022320010 is a wasteful number, since it uses less digits than its factorization.

21021022320010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555964846.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21021022320010 its reverse (1002322012012), we get a palindrome (22023344332022).

The spelling of 21021022320010 in words is "twenty-one trillion, twenty-one billion, twenty-two million, three hundred twenty thousand, ten".