1000112112121 has 4 divisors (see below), whose sum is σ = 1000353747600. Its totient is φ = 999870476644.

The previous prime is 1000112112119. The next prime is 1000112112133. The reversal of 1000112112121 is 1212112110001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000112112121 - 2¹ = 1000112112119 is a prime.

It is a super-2 number, since 2×1000112112121² (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 (1000112112101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120811531 + ... + 120819808.

It is an arithmetic number, because the mean of its divisors is an integer number (250088436900).

Almost surely, 2^{1000112112121} is an apocalyptic number.

It is an amenable number.

1000112112121 is a deficient number, since it is larger than the sum of its proper divisors (241635479).

1000112112121 is an equidigital number, since it uses as much as digits as its factorization.

1000112112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241635478.

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

Adding to 1000112112121 its reverse (1212112110001), we get a palindrome (2212224222122).

The spelling of 1000112112121 in words is "one trillion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-one".