121069900800 has 528 divisors, whose sum is σ = 449031885120. Its totient is φ = 31964037120.

The previous prime is 121069900799. The next prime is 121069900829. The reversal of 121069900800 is 8009960121.

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 47 ways as a sum of consecutive naturals, for example, 73957582 + ... + 73959218.

Almost surely, 2^121069900800 is an apocalyptic number.

121069900800 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 121069900800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224515942560).

121069900800 is an abundant number, since it is smaller than the sum of its proper divisors (327961984320).

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

121069900800 is a wasteful number, since it uses less digits than its factorization.

121069900800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 121069900800 in words is "one hundred twenty-one billion, sixty-nine million, nine hundred thousand, eight hundred".