122220444 has 24 divisors (see below), whose sum is σ = 285683328. Its totient is φ = 40668400.

The previous prime is 122220437. The next prime is 122220451. The reversal of 122220444 is 444022221.

It is an interprime number because it is at equal distance from previous prime (122220437) and next prime (122220451).

It is a self number, because there is not a number n which added to its sum of digits gives 122220444.

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, 1632 + ... + 15719.

It is an arithmetic number, because the mean of its divisors is an integer number (11903472).

Almost surely, 2^122220444 is an apocalyptic number.

It is an amenable number.

122220444 is an abundant number, since it is smaller than the sum of its proper divisors (163462884).

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

122220444 is a wasteful number, since it uses less digits than its factorization.

122220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945 (or 17943 counting only the distinct ones).

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

The square root of 122220444 is about 11055.3355444328. The cubic root of 122220444 is about 496.2661108877.

Adding to 122220444 its reverse (444022221), we get a palindrome (566242665).

The spelling of 122220444 in words is "one hundred twenty-two million, two hundred twenty thousand, four hundred forty-four".