3890210122121 has 4 divisors (see below), whose sum is σ = 4059349692672. Its totient is φ = 3721070551572.

The previous prime is 3890210122087. The next prime is 3890210122147. The reversal of 3890210122121 is 1212210120983.

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 a cyclic number.

It is not a de Polignac number, because 3890210122121 - 2³⁸ = 3615332215177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3890210112121) 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, 84569785241 + ... + 84569785286.

It is an arithmetic number, because the mean of its divisors is an integer number (1014837423168).

Almost surely, 2^{3890210122121} is an apocalyptic number.

It is an amenable number.

3890210122121 is a deficient number, since it is larger than the sum of its proper divisors (169139570551).

3890210122121 is a wasteful number, since it uses less digits than its factorization.

3890210122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169139570550.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 3890210122121 in words is "three trillion, eight hundred ninety billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".