122270238 has 24 divisors (see below), whose sum is σ = 266830200. Its totient is φ = 40462704.

The previous prime is 122270233. The next prime is 122270251. The reversal of 122270238 is 832072221.

It is a happy number.

It is a super-2 number, since 2×122270238² = 29900022201153288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122270233) 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, 21933 + ... + 26936.

It is an arithmetic number, because the mean of its divisors is an integer number (11117925).

Almost surely, 2^122270238 is an apocalyptic number.

122270238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122270238 is an abundant number, since it is smaller than the sum of its proper divisors (144559962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122270238 is a wasteful number, since it uses less digits than its factorization.

122270238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49016 (or 49013 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 122270238 is about 11057.5873498698. The cubic root of 122270238 is about 496.3334965580. Note that the first 3 decimals are identical.

The spelling of 122270238 in words is "one hundred twenty-two million, two hundred seventy thousand, two hundred thirty-eight".