2220127210261 has 2 divisors, whose sum is σ = 2220127210262. Its totient is φ = 2220127210260.

The previous prime is 2220127210219. The next prime is 2220127210277. The reversal of 2220127210261 is 1620127210222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1883808405361 + 336318804900 = 1372519^2 + 579930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220127210261 - 2¹¹ = 2220127208213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220127210061) 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 as a sum of consecutive naturals, namely, 1110063605130 + 1110063605131.

It is an arithmetic number, because the mean of its divisors is an integer number (1110063605131).

Almost surely, 2^{2220127210261} is an apocalyptic number.

It is an amenable number.

2220127210261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220127210261 is an equidigital number, since it uses as much as digits as its factorization.

2220127210261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 2220127210261 in words is "two trillion, two hundred twenty billion, one hundred twenty-seven million, two hundred ten thousand, two hundred sixty-one".