331220002221111 has 16 divisors (see below), whose sum is σ = 455914214876160. Its totient is φ = 213670859804160.

The previous prime is 331220002221037. The next prime is 331220002221137. The reversal of 331220002221111 is 111122200022133.

It is not a de Polignac number, because 331220002221111 - 2²⁶ = 331219935112247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220002228111) 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, 161175210 + ... + 163217303.

It is an arithmetic number, because the mean of its divisors is an integer number (28494638429760).

Almost surely, 2^{331220002221111} is an apocalyptic number.

331220002221111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331220002221111 is a deficient number, since it is larger than the sum of its proper divisors (124694212655049).

331220002221111 is a wasteful number, since it uses less digits than its factorization.

331220002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324403526.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 331220002221111 its reverse (111122200022133), we get a palindrome (442342202243244).

The spelling of 331220002221111 in words is "three hundred thirty-one trillion, two hundred twenty billion, two million, two hundred twenty-one thousand, one hundred eleven".