2422515662221 has 2 divisors, whose sum is σ = 2422515662222. Its totient is φ = 2422515662220.

The previous prime is 2422515661967. The next prime is 2422515662227. The reversal of 2422515662221 is 1222665152242.

2422515662221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1782187620196 + 640328042025 = 1334986^2 + 800205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2422515662221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422515662227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211257831110 + 1211257831111.

It is an arithmetic number, because the mean of its divisors is an integer number (1211257831111).

Almost surely, 2^{2422515662221} is an apocalyptic number.

It is an amenable number.

2422515662221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422515662221 is an equidigital number, since it uses as much as digits as its factorization.

2422515662221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 40.

The spelling of 2422515662221 in words is "two trillion, four hundred twenty-two billion, five hundred fifteen million, six hundred sixty-two thousand, two hundred twenty-one".