1220322133123 has 4 divisors (see below), whose sum is σ = 1220373274248. Its totient is φ = 1220270992000.

The previous prime is 1220322133117. The next prime is 1220322133157. The reversal of 1220322133123 is 3213312230221.

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 1220322133123 - 2⁹ = 1220322132611 is a prime.

It is a super-2 number, since 2×1220322133123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220322133523) 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, 25534753 + ... + 25582498.

It is an arithmetic number, because the mean of its divisors is an integer number (305093318562).

Almost surely, 2^{1220322133123} is an apocalyptic number.

1220322133123 is a deficient number, since it is larger than the sum of its proper divisors (51141125).

1220322133123 is an equidigital number, since it uses as much as digits as its factorization.

1220322133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51141124.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1220322133123 its reverse (3213312230221), we get a palindrome (4433634363344).

The spelling of 1220322133123 in words is "one trillion, two hundred twenty billion, three hundred twenty-two million, one hundred thirty-three thousand, one hundred twenty-three".