121120111100 has 36 divisors (see below), whose sum is σ = 262915854600. Its totient is φ = 48432336960.

The previous prime is 121120111093. The next prime is 121120111109. The reversal of 121120111100 is 1111021121.

121120111100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120111109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116111 + ... + 505689.

Almost surely, 2^121120111100 is an apocalyptic number.

121120111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120111100 is an abundant number, since it is smaller than the sum of its proper divisors (141795743500).

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

121120111100 is a wasteful number, since it uses less digits than its factorization.

121120111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392702 (or 392695 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121120111100 its reverse (1111021121), we get a palindrome (122231132221).

The spelling of 121120111100 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, one hundred".