121110011110 has 128 divisors (see below), whose sum is σ = 246245142528. Its totient is φ = 42505344000.

The previous prime is 121110011107. The next prime is 121110011129. The reversal of 121110011110 is 11110011121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 240775119 + ... + 240775621.

It is an arithmetic number, because the mean of its divisors is an integer number (1923790176).

Almost surely, 2^121110011110 is an apocalyptic number.

121110011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121110011110 is an abundant number, since it is smaller than the sum of its proper divisors (125135131418).

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

121110011110 is a wasteful number, since it uses less digits than its factorization.

121110011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 121110011110 its reverse (11110011121), we get a palindrome (132220022231).

The spelling of 121110011110 in words is "one hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred ten".