121790260200 has 192 divisors, whose sum is σ = 431663621760. Its totient is φ = 27826283520.

The previous prime is 121790260171. The next prime is 121790260231. The reversal of 121790260200 is 2062097121.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 14162302 + ... + 14170898.

It is an arithmetic number, because the mean of its divisors is an integer number (2248248030).

Almost surely, 2^121790260200 is an apocalyptic number.

121790260200 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 121790260200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215831810880).

121790260200 is an abundant number, since it is smaller than the sum of its proper divisors (309873361560).

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

121790260200 is a wasteful number, since it uses less digits than its factorization.

121790260200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11996 (or 11987 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 121790260200 in words is "one hundred twenty-one billion, seven hundred ninety million, two hundred sixty thousand, two hundred".