122244240 has 80 divisors (see below), whose sum is σ = 380207808. Its totient is φ = 32491008.

The previous prime is 122244197. The next prime is 122244277. The reversal of 122244240 is 42442221.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 94639 + ... + 95921.

Almost surely, 2^122244240 is an apocalyptic number.

122244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190103904).

122244240 is an abundant number, since it is smaller than the sum of its proper divisors (257963568).

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

122244240 is a wasteful number, since it uses less digits than its factorization.

122244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 122244240 is about 11056.4117144759. The cubic root of 122244240 is about 496.2983160346.

Adding to 122244240 its reverse (42442221), we get a palindrome (164686461).

The spelling of 122244240 in words is "one hundred twenty-two million, two hundred forty-four thousand, two hundred forty".