122249807 has 4 divisors (see below), whose sum is σ = 127565040. Its totient is φ = 116934576.

The previous prime is 122249797. The next prime is 122249821. The reversal of 122249807 is 708942221.

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

It is not a de Polignac number, because 122249807 - 2²⁰ = 121201231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122249507) 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, 2657582 + ... + 2657627.

It is an arithmetic number, because the mean of its divisors is an integer number (31891260).

Almost surely, 2^122249807 is an apocalyptic number.

122249807 is a deficient number, since it is larger than the sum of its proper divisors (5315233).

122249807 is an equidigital number, since it uses as much as digits as its factorization.

122249807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315232.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 122249807 is about 11056.6634659829. The cubic root of 122249807 is about 496.3058497250.

The spelling of 122249807 in words is "one hundred twenty-two million, two hundred forty-nine thousand, eight hundred seven".