122279091 has 12 divisors (see below), whose sum is σ = 179208456. Its totient is φ = 74108320.

The previous prime is 122279089. The next prime is 122279141. The reversal of 122279091 is 190972221.

It is not a de Polignac number, because 122279091 - 2¹ = 122279089 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (122279491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168066 + ... + 168791.

It is an arithmetic number, because the mean of its divisors is an integer number (14934038).

Almost surely, 2^122279091 is an apocalyptic number.

122279091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122279091 is a deficient number, since it is larger than the sum of its proper divisors (56929365).

122279091 is a wasteful number, since it uses less digits than its factorization.

122279091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336882 (or 336871 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 122279091 is about 11057.9876559888. The cubic root of 122279091 is about 496.3454753095.

The spelling of 122279091 in words is "one hundred twenty-two million, two hundred seventy-nine thousand, ninety-one".