331222001003021 has 8 divisors (see below), whose sum is σ = 342983036508600. Its totient is φ = 319483604643840.

The previous prime is 331222001002969. The next prime is 331222001003053. The reversal of 331222001003021 is 120300100222133.

It can be written as a sum of positive squares in 4 ways, for example, as 87917814602500 + 243304186400521 = 9376450^2 + 15598211^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331222001003021 - 2¹⁸ = 331222000740877 is a prime.

It is a super-2 number, since 2×331222001003021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331222001002984 and 331222001003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331222001003521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5659756820 + ... + 5659815341.

It is an arithmetic number, because the mean of its divisors is an integer number (42872879563575).

Almost surely, 2^{331222001003021} is an apocalyptic number.

It is an amenable number.

331222001003021 is a deficient number, since it is larger than the sum of its proper divisors (11761035505579).

331222001003021 is a wasteful number, since it uses less digits than its factorization.

331222001003021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319573199.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 331222001003021 its reverse (120300100222133), we get a palindrome (451522101225154).

The spelling of 331222001003021 in words is "three hundred thirty-one trillion, two hundred twenty-two billion, one million, three thousand, twenty-one".