122020140 has 48 divisors (see below), whose sum is σ = 372718080. Its totient is φ = 29580480.

The previous prime is 122020133. The next prime is 122020153. The reversal of 122020140 is 41020221.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 91780 + ... + 93099.

It is an arithmetic number, because the mean of its divisors is an integer number (7764960).

Almost surely, 2^122020140 is an apocalyptic number.

122020140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020140 is an abundant number, since it is smaller than the sum of its proper divisors (250697940).

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

122020140 is a wasteful number, since it uses less digits than its factorization.

122020140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184902 (or 184900 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 122020140 is about 11046.2726745269. The cubic root of 122020140 is about 495.9948566498.

Adding to 122020140 its reverse (41020221), we get a palindrome (163040361).

The spelling of 122020140 in words is "one hundred twenty-two million, twenty thousand, one hundred forty".