2890001122121 has 4 divisors (see below), whose sum is σ = 2901246262932. Its totient is φ = 2878755981312.

The previous prime is 2890001122117. The next prime is 2890001122171. The reversal of 2890001122121 is 1212211000982.

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 1765680206521 + 1124320915600 = 1328789^2 + 1060340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2890001122121 - 2² = 2890001122117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2890001122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5622570020 + ... + 5622570533.

It is an arithmetic number, because the mean of its divisors is an integer number (725311565733).

Almost surely, 2^{2890001122121} is an apocalyptic number.

It is an amenable number.

2890001122121 is a deficient number, since it is larger than the sum of its proper divisors (11245140811).

2890001122121 is a wasteful number, since it uses less digits than its factorization.

2890001122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245140810.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 2890001122121 in words is "two trillion, eight hundred ninety billion, one million, one hundred twenty-two thousand, one hundred twenty-one".