3320203012121 has 4 divisors (see below), whose sum is σ = 3320560301412. Its totient is φ = 3319845722832.

The previous prime is 3320203012099. The next prime is 3320203012127. The reversal of 3320203012121 is 1212103020233.

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 1094139012121 + 2226064000000 = 1046011^2 + 1492000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3320203012121 is a prime.

It is a super-2 number, since 2×3320203012121² (a number of 26 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 = 3320203012093 and 3320203012102.

It is not an unprimeable number, because it can be changed into a prime (3320203012127) 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, 178630706 + ... + 178649291.

It is an arithmetic number, because the mean of its divisors is an integer number (830140075353).

Almost surely, 2^{3320203012121} is an apocalyptic number.

It is an amenable number.

3320203012121 is a deficient number, since it is larger than the sum of its proper divisors (357289291).

3320203012121 is an equidigital number, since it uses as much as digits as its factorization.

3320203012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357289290.

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

Adding to 3320203012121 its reverse (1212103020233), we get a palindrome (4532306032354).

The spelling of 3320203012121 in words is "three trillion, three hundred twenty billion, two hundred three million, twelve thousand, one hundred twenty-one".