2125412026121 has 4 divisors (see below), whose sum is σ = 2217821244672. Its totient is φ = 2033002807572.

The previous prime is 2125412026117. The next prime is 2125412026123. The reversal of 2125412026121 is 1216202145212.

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 2125412026121 - 2² = 2125412026117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125412026123) 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, 46204609241 + ... + 46204609286.

It is an arithmetic number, because the mean of its divisors is an integer number (554455311168).

Almost surely, 2^{2125412026121} is an apocalyptic number.

It is an amenable number.

2125412026121 is a deficient number, since it is larger than the sum of its proper divisors (92409218551).

2125412026121 is an equidigital number, since it uses as much as digits as its factorization.

2125412026121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92409218550.

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 2125412026121 in words is "two trillion, one hundred twenty-five billion, four hundred twelve million, twenty-six thousand, one hundred twenty-one".