1110002112121 has 24 divisors (see below), whose sum is σ = 1293004270080. Its totient is φ = 950121799200.

The previous prime is 1110002112059. The next prime is 1110002112211. The reversal of 1110002112121 is 1212112000111.

It is a happy number.

It is not a de Polignac number, because 1110002112121 - 2⁹ = 1110002111609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110000112121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123178506 + ... + 123187516.

It is an arithmetic number, because the mean of its divisors is an integer number (53875177920).

Almost surely, 2^{1110002112121} is an apocalyptic number.

It is an amenable number.

1110002112121 is a deficient number, since it is larger than the sum of its proper divisors (183002157959).

1110002112121 is a wasteful number, since it uses less digits than its factorization.

1110002112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12205 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110002112121 its reverse (1212112000111), we get a palindrome (2322114112232).

The spelling of 1110002112121 in words is "one trillion, one hundred ten billion, two million, one hundred twelve thousand, one hundred twenty-one".