121822045800 has 864 divisors, whose sum is σ = 491266994400. Its totient is φ = 24751319040.

The previous prime is 121822045727. The next prime is 121822045841. The reversal of 121822045800 is 8540228121.

It is a super-2 number, since 2×121822045800² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 321430011 + ... + 321430389.

Almost surely, 2^121822045800 is an apocalyptic number.

121822045800 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 121822045800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245633497200).

121822045800 is an abundant number, since it is smaller than the sum of its proper divisors (369444948600).

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

121822045800 is a wasteful number, since it uses less digits than its factorization.

121822045800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 121822045800 in words is "one hundred twenty-one billion, eight hundred twenty-two million, forty-five thousand, eight hundred".