121427542600 has 192 divisors, whose sum is σ = 348086471040. Its totient is φ = 38361600000.

The previous prime is 121427542573. The next prime is 121427542619. The reversal of 121427542600 is 6245724121.

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, 10786975 + ... + 10798225.

It is an arithmetic number, because the mean of its divisors is an integer number (1812950370).

Almost surely, 2^121427542600 is an apocalyptic number.

121427542600 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 121427542600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174043235520).

121427542600 is an abundant number, since it is smaller than the sum of its proper divisors (226658928440).

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

121427542600 is a wasteful number, since it uses less digits than its factorization.

121427542600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880 (or 11871 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 121427542600 in words is "one hundred twenty-one billion, four hundred twenty-seven million, five hundred forty-two thousand, six hundred".