122237709 has 28 divisors (see below), whose sum is σ = 187076832. Its totient is φ = 70862440.

The previous prime is 122237699. The next prime is 122237719. The reversal of 122237709 is 907732221.

It is an interprime number because it is at equal distance from previous prime (122237699) and next prime (122237719).

It is not a de Polignac number, because 122237709 - 2⁹ = 122237197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 122237709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122237719) 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 27 ways as a sum of consecutive naturals, for example, 5314672 + ... + 5314694.

Almost surely, 2^122237709 is an apocalyptic number.

It is an amenable number.

122237709 is a deficient number, since it is larger than the sum of its proper divisors (64839123).

122237709 is an frugal number, since it uses more digits than its factorization.

122237709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 122237709 is about 11056.1163615440. The cubic root of 122237709 is about 496.2894774940.

The spelling of 122237709 in words is "one hundred twenty-two million, two hundred thirty-seven thousand, seven hundred nine".