121098862080 has 800 divisors, whose sum is σ = 521908738560. Its totient is φ = 26216939520.

The previous prime is 121098862063. The next prime is 121098862111. The reversal of 121098862080 is 80268890121.

It is a happy number.

121098862080 is a `hidden beast` number, since 1 + 2 + 10 + 9 + 8 + 8 + 620 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27576685 + ... + 27581075.

Almost surely, 2^121098862080 is an apocalyptic number.

121098862080 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 121098862080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260954369280).

121098862080 is an abundant number, since it is smaller than the sum of its proper divisors (400809876480).

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

121098862080 is an equidigital number, since it uses as much as digits as its factorization.

121098862080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 121098862080 in words is "one hundred twenty-one billion, ninety-eight million, eight hundred sixty-two thousand, eighty".