122489910000 has 600 divisors, whose sum is σ = 450057310560. Its totient is φ = 31046400000.

The previous prime is 122489909977. The next prime is 122489910013. The reversal of 122489910000 is 19984221.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 185309670 + ... + 185310330.

Almost surely, 2^122489910000 is an apocalyptic number.

122489910000 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 122489910000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225028655280).

122489910000 is an abundant number, since it is smaller than the sum of its proper divisors (327567400560).

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

122489910000 is a wasteful number, since it uses less digits than its factorization.

122489910000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 122489910000 in words is "one hundred twenty-two billion, four hundred eighty-nine million, nine hundred ten thousand".