3330121232021 has 4 divisors (see below), whose sum is σ = 3330726604044. Its totient is φ = 3329515860000.

The previous prime is 3330121231919. The next prime is 3330121232023. The reversal of 3330121232021 is 1202321210333.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2137777348996 + 1192343883025 = 1462114^2 + 1091945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3330121232021 is a prime.

It is a super-2 number, since 2×3330121232021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3330121232023) 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, 302677760 + ... + 302688761.

It is an arithmetic number, because the mean of its divisors is an integer number (832681651011).

Almost surely, 2^{3330121232021} is an apocalyptic number.

It is an amenable number.

3330121232021 is a deficient number, since it is larger than the sum of its proper divisors (605372023).

3330121232021 is an equidigital number, since it uses as much as digits as its factorization.

3330121232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605372022.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3330121232021 its reverse (1202321210333), we get a palindrome (4532442442354).

The spelling of 3330121232021 in words is "three trillion, three hundred thirty billion, one hundred twenty-one million, two hundred thirty-two thousand, twenty-one".