122245140 has 24 divisors (see below), whose sum is σ = 342286560. Its totient is φ = 32598688.

The previous prime is 122245133. The next prime is 122245163. The reversal of 122245140 is 41542221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018650 + ... + 1018769.

It is an arithmetic number, because the mean of its divisors is an integer number (14261940).

Almost surely, 2^122245140 is an apocalyptic number.

122245140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122245140 is an abundant number, since it is smaller than the sum of its proper divisors (220041420).

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

122245140 is a wasteful number, since it uses less digits than its factorization.

122245140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037431 (or 2037429 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122245140 is about 11056.4524147667. The cubic root of 122245140 is about 496.2995339989.

Adding to 122245140 its reverse (41542221), we get a palindrome (163787361).

The spelling of 122245140 in words is "one hundred twenty-two million, two hundred forty-five thousand, one hundred forty".