2144255424121 has 2 divisors, whose sum is σ = 2144255424122. Its totient is φ = 2144255424120.

The previous prime is 2144255424109. The next prime is 2144255424127. The reversal of 2144255424121 is 1214245524412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2032121525625 + 112133898496 = 1425525^2 + 334864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144255424121 - 2⁵ = 2144255424089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144255424127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072127712060 + 1072127712061.

It is an arithmetic number, because the mean of its divisors is an integer number (1072127712061).

Almost surely, 2^{2144255424121} is an apocalyptic number.

It is an amenable number.

2144255424121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144255424121 is an equidigital number, since it uses as much as digits as its factorization.

2144255424121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102400, while the sum is 37.

The spelling of 2144255424121 in words is "two trillion, one hundred forty-four billion, two hundred fifty-five million, four hundred twenty-four thousand, one hundred twenty-one".