2854217650121 has 2 divisors, whose sum is σ = 2854217650122. Its totient is φ = 2854217650120.

The previous prime is 2854217650099. The next prime is 2854217650139. The reversal of 2854217650121 is 1210567124582.

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., 2647910017600 + 206307632521 = 1627240^2 + 454211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2854217650121 - 2³⁴ = 2837037780937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2854217650721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427108825060 + 1427108825061.

It is an arithmetic number, because the mean of its divisors is an integer number (1427108825061).

Almost surely, 2^{2854217650121} is an apocalyptic number.

It is an amenable number.

2854217650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2854217650121 is an equidigital number, since it uses as much as digits as its factorization.

2854217650121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 2854217650121 in words is "two trillion, eight hundred fifty-four billion, two hundred seventeen million, six hundred fifty thousand, one hundred twenty-one".