331221222101 has 16 divisors (see below), whose sum is σ = 414360551808. Its totient is φ = 257213572800.

The previous prime is 331221222061. The next prime is 331221222103. The reversal of 331221222101 is 101222122133.

It is a cyclic number.

It is not a de Polignac number, because 331221222101 - 2¹⁴ = 331221205717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331221222103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7318010 + ... + 7363131.

It is an arithmetic number, because the mean of its divisors is an integer number (25897534488).

Almost surely, 2^331221222101 is an apocalyptic number.

It is an amenable number.

331221222101 is a deficient number, since it is larger than the sum of its proper divisors (83139329707).

331221222101 is a wasteful number, since it uses less digits than its factorization.

331221222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14681452.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 331221222101 its reverse (101222122133), we get a palindrome (432443344234).

The spelling of 331221222101 in words is "three hundred thirty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".