2422261 has 2 divisors, whose sum is σ = 2422262. Its totient is φ = 2422260.

The previous prime is 2422243. The next prime is 2422267. The reversal of 2422261 is 1622242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 1199025 = 1106^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422261 - 2⁵ = 2422229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211130 + 1211131.

It is an arithmetic number, because the mean of its divisors is an integer number (1211131).

2^2422261 is an apocalyptic number.

It is an amenable number.

2422261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422261 is an equidigital number, since it uses as much as digits as its factorization.

2422261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 19.

The square root of 2422261 is about 1556.3614618719. The cubic root of 2422261 is about 134.2992680169.

Subtracting from 2422261 its sum of digits (19), we obtain a palindrome (2422242).

The spelling of 2422261 in words is "two million, four hundred twenty-two thousand, two hundred sixty-one".