122311249 has 4 divisors (see below), whose sum is σ = 124913664. Its totient is φ = 119708836.

The previous prime is 122311229. The next prime is 122311261. The reversal of 122311249 is 942113221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942113221 = 7 ⋅134587603.

It is a cyclic number.

It is not a de Polignac number, because 122311249 - 2¹⁹ = 121786961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122311219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301137 + ... + 1301230.

It is an arithmetic number, because the mean of its divisors is an integer number (31228416).

Almost surely, 2^122311249 is an apocalyptic number.

It is an amenable number.

122311249 is a deficient number, since it is larger than the sum of its proper divisors (2602415).

122311249 is an equidigital number, since it uses as much as digits as its factorization.

122311249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602414.

The product of its digits is 864, while the sum is 25.

The square root of 122311249 is about 11059.4416224328. The cubic root of 122311249 is about 496.3889825536.

The spelling of 122311249 in words is "one hundred twenty-two million, three hundred eleven thousand, two hundred forty-nine".