331212033100021 has 8 divisors (see below), whose sum is σ = 338523569233920. Its totient is φ = 323911516616208.

The previous prime is 331212033099991. The next prime is 331212033100031. The reversal of 331212033100021 is 120001330212133.

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 331212033100021 - 2⁵ = 331212033099989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331212033099965 and 331212033100001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331212033100031) 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, 2754851746 + ... + 2754971971.

It is an arithmetic number, because the mean of its divisors is an integer number (42315446154240).

Almost surely, 2^{331212033100021} is an apocalyptic number.

It is an amenable number.

331212033100021 is a deficient number, since it is larger than the sum of its proper divisors (7311536133899).

331212033100021 is a wasteful number, since it uses less digits than its factorization.

331212033100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509825043.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 331212033100021 its reverse (120001330212133), we get a palindrome (451213363312154).

The spelling of 331212033100021 in words is "three hundred thirty-one trillion, two hundred twelve billion, thirty-three million, one hundred thousand, twenty-one".