122240140 has 24 divisors (see below), whose sum is σ = 280041552. Its totient is φ = 44450880.

The previous prime is 122240137. The next prime is 122240189. The reversal of 122240140 is 41042221.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 277599 + ... + 278038.

It is an arithmetic number, because the mean of its divisors is an integer number (11668398).

Almost surely, 2^122240140 is an apocalyptic number.

122240140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122240140 is an abundant number, since it is smaller than the sum of its proper divisors (157801412).

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

122240140 is a wasteful number, since it uses less digits than its factorization.

122240140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555657 (or 555655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122240140 is about 11056.2263001442. The cubic root of 122240140 is about 496.2927674545.

Adding to 122240140 its reverse (41042221), we get a palindrome (163282361).

The spelling of 122240140 in words is "one hundred twenty-two million, two hundred forty thousand, one hundred forty".