122229290 has 16 divisors (see below), whose sum is σ = 220262112. Its totient is φ = 48836304.

The previous prime is 122229277. The next prime is 122229301. The reversal of 122229290 is 92922221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (13766382).

Almost surely, 2^122229290 is an apocalyptic number.

122229290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122229290 is a deficient number, since it is larger than the sum of its proper divisors (98032822).

122229290 is a wasteful number, since it uses less digits than its factorization.

122229290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13861.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 122229290 is about 11055.7356155075. The cubic root of 122229290 is about 496.2780834185.

It can be divided in two parts, 12222 and 9290, that added together give a palindrome (21512).

The spelling of 122229290 in words is "one hundred twenty-two million, two hundred twenty-nine thousand, two hundred ninety".