121001111011110 has 96 divisors (see below), whose sum is σ = 319234504460256. Its totient is φ = 29330701171200.

The previous prime is 121001111011093. The next prime is 121001111011171. The reversal of 121001111011110 is 11110111100121.

It is a Curzon number.

It is a congruent number.

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, 35168322 + ... + 38455338.

It is an arithmetic number, because the mean of its divisors is an integer number (3325359421461).

Almost surely, 2^{121001111011110} is an apocalyptic number.

121001111011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001111011110 is an abundant number, since it is smaller than the sum of its proper divisors (198233393449146).

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

121001111011110 is a wasteful number, since it uses less digits than its factorization.

121001111011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297190 (or 3297179 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 121001111011110 its reverse (11110111100121), we get a palindrome (132111222111231).

The spelling of 121001111011110 in words is "one hundred twenty-one trillion, one billion, one hundred eleven million, eleven thousand, one hundred ten".