2122637266 has 4 divisors (see below), whose sum is σ = 3183955902. Its totient is φ = 1061318632.

The previous prime is 2122637263. The next prime is 2122637347. The reversal of 2122637266 is 6627362212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1728813241 + 393824025 = 41579^2 + 19845^2 .

It is not an unprimeable number, because it can be changed into a prime (2122637263) 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, 530659315 + ... + 530659318.

Almost surely, 2^2122637266 is an apocalyptic number.

2122637266 is a deficient number, since it is larger than the sum of its proper divisors (1061318636).

2122637266 is a wasteful number, since it uses less digits than its factorization.

2122637266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061318635.

The product of its digits is 72576, while the sum is 37.

The square root of 2122637266 is about 46072.0877104565. The cubic root of 2122637266 is about 1285.1641280765.

Adding to 2122637266 its reverse (6627362212), we get a palindrome (8749999478).

The spelling of 2122637266 in words is "two billion, one hundred twenty-two million, six hundred thirty-seven thousand, two hundred sixty-six".