1112121002101 has 4 divisors (see below), whose sum is σ = 1117020213792. Its totient is φ = 1107221790412.

The previous prime is 1112121002077. The next prime is 1112121002119. The reversal of 1112121002101 is 1012001212111.

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 a de Polignac number, because none of the positive numbers 2^k-1112121002101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112121002501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449605505 + ... + 2449605958.

It is an arithmetic number, because the mean of its divisors is an integer number (279255053448).

Almost surely, 2^{1112121002101} is an apocalyptic number.

It is an amenable number.

1112121002101 is a deficient number, since it is larger than the sum of its proper divisors (4899211691).

1112121002101 is an equidigital number, since it uses as much as digits as its factorization.

1112121002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899211690.

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

Adding to 1112121002101 its reverse (1012001212111), we get a palindrome (2124122214212).

The spelling of 1112121002101 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two thousand, one hundred one".