2221320322210 has 64 divisors (see below), whose sum is σ = 4512617568000. Its totient is φ = 779840006400.

The previous prime is 2221320322159. The next prime is 2221320322213. The reversal of 2221320322210 is 122230231222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2221320322213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77793016 + ... + 77821564.

It is an arithmetic number, because the mean of its divisors is an integer number (70509649500).

Almost surely, 2^{2221320322210} is an apocalyptic number.

2221320322210 is an abundant number, since it is smaller than the sum of its proper divisors (2291297245790).

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

2221320322210 is a wasteful number, since it uses less digits than its factorization.

2221320322210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52987.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2221320322210 its reverse (122230231222), we get a palindrome (2343550553432).

The spelling of 2221320322210 in words is "two trillion, two hundred twenty-one billion, three hundred twenty million, three hundred twenty-two thousand, two hundred ten".