1012112100121 has 8 divisors (see below), whose sum is σ = 1022233010688. Its totient is φ = 1002041418000.

The previous prime is 1012112100089. The next prime is 1012112100127. The reversal of 1012112100121 is 1210012112101.

It is a happy number.

1012112100121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012112100121 - 2⁵ = 1012112100089 is a prime.

It is a super-2 number, since 2×1012112100121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012112100127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12516610 + ... + 12597211.

It is an arithmetic number, because the mean of its divisors is an integer number (127779126336).

Almost surely, 2^{1012112100121} is an apocalyptic number.

It is an amenable number.

1012112100121 is a deficient number, since it is larger than the sum of its proper divisors (10120910567).

1012112100121 is a wasteful number, since it uses less digits than its factorization.

1012112100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25114223.

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

Adding to 1012112100121 its reverse (1210012112101), we get a palindrome (2222124212222).

The spelling of 1012112100121 in words is "one trillion, twelve billion, one hundred twelve million, one hundred thousand, one hundred twenty-one".