331201021320122 has 8 divisors (see below), whose sum is σ = 497246296112436. Its totient is φ = 165452255949312.

The previous prime is 331201021320119. The next prime is 331201021320181. The reversal of 331201021320122 is 221023120102133.

It can be written as a sum of positive squares in 2 ways, for example, as 330800470302241 + 400551017881 = 18187921^2 + 632891^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74127352583 + ... + 74127357050.

Almost surely, 2^{331201021320122} is an apocalyptic number.

331201021320122 is a deficient number, since it is larger than the sum of its proper divisors (166045274792314).

331201021320122 is a wasteful number, since it uses less digits than its factorization.

331201021320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148254710752.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 331201021320122 its reverse (221023120102133), we get a palindrome (552224141422255).

The spelling of 331201021320122 in words is "three hundred thirty-one trillion, two hundred one billion, twenty-one million, three hundred twenty thousand, one hundred twenty-two".