1011201112223 has 4 divisors (see below), whose sum is σ = 1011203123568. Its totient is φ = 1011199100880.

The previous prime is 1011201112189. The next prime is 1011201112231. The reversal of 1011201112223 is 3222111021101.

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 1011201112223 - 2²⁰ = 1011200063647 is a prime.

It is a super-2 number, since 2×1011201112223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011201112423) 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, 482990 + ... + 1501892.

It is an arithmetic number, because the mean of its divisors is an integer number (252800780892).

Almost surely, 2^{1011201112223} is an apocalyptic number.

1011201112223 is a deficient number, since it is larger than the sum of its proper divisors (2011345).

1011201112223 is an equidigital number, since it uses as much as digits as its factorization.

1011201112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011344.

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

Adding to 1011201112223 its reverse (3222111021101), we get a palindrome (4233312133324).

The spelling of 1011201112223 in words is "one trillion, eleven billion, two hundred one million, one hundred twelve thousand, two hundred twenty-three".