331222000120221 has 32 divisors (see below), whose sum is σ = 507646173155328. Its totient is φ = 188172154653120.

The previous prime is 331222000120211. The next prime is 331222000120223. The reversal of 331222000120221 is 122021000222133.

It is not a de Polignac number, because 331222000120221 - 2⁶ = 331222000120157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331222000120223) 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, 200193660 + ... + 201841386.

It is an arithmetic number, because the mean of its divisors is an integer number (15863942911104).

Almost surely, 2^{331222000120221} is an apocalyptic number.

It is an amenable number.

331222000120221 is a deficient number, since it is larger than the sum of its proper divisors (176424173035107).

331222000120221 is a wasteful number, since it uses less digits than its factorization.

331222000120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703241.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 331222000120221 its reverse (122021000222133), we get a palindrome (453243000342354).

The spelling of 331222000120221 in words is "three hundred thirty-one trillion, two hundred twenty-two billion, one hundred twenty thousand, two hundred twenty-one".