3990202110121 has 8 divisors (see below), whose sum is σ = 3994849146080. Its totient is φ = 3985555365792.

The previous prime is 3990202110109. The next prime is 3990202110143. The reversal of 3990202110121 is 1210112020993.

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 3990202110121 - 2⁹ = 3990202109609 is a prime.

It is a super-2 number, since 2×3990202110121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3990202110221) 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, 40041085 + ... + 40140613.

It is an arithmetic number, because the mean of its divisors is an integer number (499356143260).

Almost surely, 2^{3990202110121} is an apocalyptic number.

It is an amenable number.

3990202110121 is a deficient number, since it is larger than the sum of its proper divisors (4647035959).

3990202110121 is an equidigital number, since it uses as much as digits as its factorization.

3990202110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145815.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 3990202110121 in words is "three trillion, nine hundred ninety billion, two hundred two million, one hundred ten thousand, one hundred twenty-one".