1220113011233 has 4 divisors (see below), whose sum is σ = 1220309841600. Its totient is φ = 1219916180868.

The previous prime is 1220113011209. The next prime is 1220113011307. The reversal of 1220113011233 is 3321103110221.

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 1220113011233 - 2¹⁶ = 1220112945697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220113011433) 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, 98405885 + ... + 98418282.

It is an arithmetic number, because the mean of its divisors is an integer number (305077460400).

Almost surely, 2^{1220113011233} is an apocalyptic number.

It is an amenable number.

1220113011233 is a deficient number, since it is larger than the sum of its proper divisors (196830367).

1220113011233 is an equidigital number, since it uses as much as digits as its factorization.

1220113011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196830366.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1220113011233 its reverse (3321103110221), we get a palindrome (4541216121454).

The spelling of 1220113011233 in words is "one trillion, two hundred twenty billion, one hundred thirteen million, eleven thousand, two hundred thirty-three".