122720244 has 12 divisors (see below), whose sum is σ = 286347264. Its totient is φ = 40906744.

The previous prime is 122720239. The next prime is 122720251. The reversal of 122720244 is 442027221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5113332 + ... + 5113355.

It is an arithmetic number, because the mean of its divisors is an integer number (23862272).

Almost surely, 2^122720244 is an apocalyptic number.

It is an amenable number.

122720244 is an abundant number, since it is smaller than the sum of its proper divisors (163627020).

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

122720244 is a wasteful number, since it uses less digits than its factorization.

122720244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226694 (or 10226692 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 122720244 is about 11077.9169522072. The cubic root of 122720244 is about 496.9416565454.

Adding to 122720244 its reverse (442027221), we get a palindrome (564747465).

The spelling of 122720244 in words is "one hundred twenty-two million, seven hundred twenty thousand, two hundred forty-four".