21210220323322 has 8 divisors (see below), whose sum is σ = 33489821563200. Its totient is φ = 10046946468924.

The previous prime is 21210220323307. The next prime is 21210220323343. The reversal of 21210220323322 is 22332302201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279081846322 + ... + 279081846397.

It is an arithmetic number, because the mean of its divisors is an integer number (4186227695400).

Almost surely, 2^{21210220323322} is an apocalyptic number.

21210220323322 is a deficient number, since it is larger than the sum of its proper divisors (12279601239878).

21210220323322 is a wasteful number, since it uses less digits than its factorization.

21210220323322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558163692740.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21210220323322 its reverse (22332302201212), we get a palindrome (43542522524534).

The spelling of 21210220323322 in words is "twenty-one trillion, two hundred ten billion, two hundred twenty million, three hundred twenty-three thousand, three hundred twenty-two".