1356222213123 has 4 divisors (see below), whose sum is σ = 1808296284168. Its totient is φ = 904148142080.

The previous prime is 1356222213091. The next prime is 1356222213127. The reversal of 1356222213123 is 3213122226531.

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 1356222213123 - 2⁵ = 1356222213091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1356222213127) 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, 226037035518 + ... + 226037035523.

It is an arithmetic number, because the mean of its divisors is an integer number (452074071042).

Almost surely, 2^{1356222213123} is an apocalyptic number.

1356222213123 is a deficient number, since it is larger than the sum of its proper divisors (452074071045).

1356222213123 is an equidigital number, since it uses as much as digits as its factorization.

1356222213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452074071044.

The product of its digits is 25920, while the sum is 33.

Adding to 1356222213123 its reverse (3213122226531), we get a palindrome (4569344439654).

The spelling of 1356222213123 in words is "one trillion, three hundred fifty-six billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-three".