121112021013000 has 128 divisors (see below), whose sum is σ = 383045800849920. Its totient is φ = 31854120537600.

The previous prime is 121112021012933. The next prime is 121112021013001. The reversal of 121112021013000 is 310120211121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (121112021013001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276292464 + ... + 276730463.

It is an arithmetic number, because the mean of its divisors is an integer number (2992545319140).

Almost surely, 2^{121112021013000} is an apocalyptic number.

121112021013000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112021013000 is an abundant number, since it is smaller than the sum of its proper divisors (261933779836920).

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

121112021013000 is a wasteful number, since it uses less digits than its factorization.

121112021013000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553023024 (or 553023010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121112021013000 its reverse (310120211121), we get a palindrome (121422141224121).

The spelling of 121112021013000 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-one million, thirteen thousand".