1112123020211 has 4 divisors (see below), whose sum is σ = 1270997737392. Its totient is φ = 953248303032.

The previous prime is 1112123020171. The next prime is 1112123020291. The reversal of 1112123020211 is 1120203212111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1112123020211 - 2²² = 1112118825907 is a prime.

It is a super-2 number, since 2×1112123020211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112123020211.

It is not an unprimeable number, because it can be changed into a prime (1112123020291) 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, 79437358580 + ... + 79437358593.

It is an arithmetic number, because the mean of its divisors is an integer number (317749434348).

Almost surely, 2^{1112123020211} is an apocalyptic number.

1112123020211 is a deficient number, since it is larger than the sum of its proper divisors (158874717181).

1112123020211 is an equidigital number, since it uses as much as digits as its factorization.

1112123020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158874717180.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1112123020211 its reverse (1120203212111), we get a palindrome (2232326232322).

The spelling of 1112123020211 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, twenty thousand, two hundred eleven".