322113122221221 has 16 divisors (see below), whose sum is σ = 490102047825600. Its totient is φ = 208938241440144.

The previous prime is 322113122221171. The next prime is 322113122221313. The reversal of 322113122221221 is 122122221311223.

322113122221221 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 1 + 312 + 222 + 122 + 1 = 666.

It is not a de Polignac number, because 322113122221221 - 2³⁹ = 321563366407333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322113122226221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161217777891 + ... + 161217779888.

It is an arithmetic number, because the mean of its divisors is an integer number (30631377989100).

Almost surely, 2^{322113122221221} is an apocalyptic number.

It is an amenable number.

322113122221221 is a deficient number, since it is larger than the sum of its proper divisors (167988925604379).

322113122221221 is a wasteful number, since it uses less digits than its factorization.

322113122221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322435557825 (or 322435557819 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 322113122221221 its reverse (122122221311223), we get a palindrome (444235343532444).

The spelling of 322113122221221 in words is "three hundred twenty-two trillion, one hundred thirteen billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".