122049980 has 48 divisors (see below), whose sum is σ = 285556320. Its totient is φ = 43507968.

The previous prime is 122049979. The next prime is 122049997. The reversal of 122049980 is 89940221.

It is a self number, because there is not a number n which added to its sum of digits gives 122049980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (5949090).

Almost surely, 2^122049980 is an apocalyptic number.

122049980 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 122049980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142778160).

122049980 is an abundant number, since it is smaller than the sum of its proper divisors (163506340).

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

122049980 is a wasteful number, since it uses less digits than its factorization.

122049980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238 (or 16236 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 122049980 is about 11047.6232738087. The cubic root of 122049980 is about 496.0352851675.

The spelling of 122049980 in words is "one hundred twenty-two million, forty-nine thousand, nine hundred eighty".