330121010021 has 4 divisors (see below), whose sum is σ = 360132010944. Its totient is φ = 300110009100.

The previous prime is 330121010017. The next prime is 330121010053. The reversal of 330121010021 is 120010121033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 330121010021 - 2² = 330121010017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 330121009978 and 330121010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330121010221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15005500445 + ... + 15005500466.

It is an arithmetic number, because the mean of its divisors is an integer number (90033002736).

Almost surely, 2^330121010021 is an apocalyptic number.

It is an amenable number.

330121010021 is a deficient number, since it is larger than the sum of its proper divisors (30011000923).

330121010021 is a wasteful number, since it uses less digits than its factorization.

330121010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30011000922.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 330121010021 its reverse (120010121033), we get a palindrome (450131131054).

The spelling of 330121010021 in words is "three hundred thirty billion, one hundred twenty-one million, ten thousand, twenty-one".