121101120111000 has 64 divisors (see below), whose sum is σ = 377835494755680. Its totient is φ = 32293632028800.

The previous prime is 121101120110987. The next prime is 121101120111001. The reversal of 121101120111000 is 111021101121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101120111001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20183517019 + ... + 20183523018.

Almost surely, 2^{121101120111000} is an apocalyptic number.

121101120111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101120111000 is an abundant number, since it is smaller than the sum of its proper divisors (256734374644680).

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

121101120111000 is a wasteful number, since it uses less digits than its factorization.

121101120111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40367040061 (or 40367040047 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 121101120111000 its reverse (111021101121), we get a palindrome (121212141212121).

The spelling of 121101120111000 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty million, one hundred eleven thousand".