1220230233133 has 4 divisors (see below), whose sum is σ = 1220294444380. Its totient is φ = 1220166021888.

The previous prime is 1220230233097. The next prime is 1220230233149. The reversal of 1220230233133 is 3313320320221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1062833159844 + 157397073289 = 1030938^2 + 396733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220230233133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220230233098 and 1220230233107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220230234133) 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, 32077110 + ... + 32115127.

It is an arithmetic number, because the mean of its divisors is an integer number (305073611095).

Almost surely, 2^{1220230233133} is an apocalyptic number.

It is an amenable number.

1220230233133 is a deficient number, since it is larger than the sum of its proper divisors (64211247).

1220230233133 is an equidigital number, since it uses as much as digits as its factorization.

1220230233133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64211246.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1220230233133 its reverse (3313320320221), we get a palindrome (4533550553354).

The spelling of 1220230233133 in words is "one trillion, two hundred twenty billion, two hundred thirty million, two hundred thirty-three thousand, one hundred thirty-three".