122240259 has 20 divisors (see below), whose sum is σ = 182908440. Its totient is φ = 81358560.

The previous prime is 122240257. The next prime is 122240269. The reversal of 122240259 is 952042221.

It is a happy number.

It is not a de Polignac number, because 122240259 - 2¹ = 122240257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (122240257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 81799 + ... + 83279.

It is an arithmetic number, because the mean of its divisors is an integer number (9145422).

Almost surely, 2^122240259 is an apocalyptic number.

122240259 is a deficient number, since it is larger than the sum of its proper divisors (60668181).

122240259 is a wasteful number, since it uses less digits than its factorization.

122240259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 122240259 is about 11056.2316817259. The cubic root of 122240259 is about 496.2929285004.

The spelling of 122240259 in words is "one hundred twenty-two million, two hundred forty thousand, two hundred fifty-nine".