1222342012123 has 4 divisors (see below), whose sum is σ = 1222358827480. Its totient is φ = 1222325196768.

The previous prime is 1222342012081. The next prime is 1222342012181. The reversal of 1222342012123 is 3212102432221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222342012123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222342012523) 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, 8298165 + ... + 8444182.

It is an arithmetic number, because the mean of its divisors is an integer number (305589706870).

Almost surely, 2^{1222342012123} is an apocalyptic number.

1222342012123 is a deficient number, since it is larger than the sum of its proper divisors (16815357).

1222342012123 is an equidigital number, since it uses as much as digits as its factorization.

1222342012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16815356.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1222342012123 its reverse (3212102432221), we get a palindrome (4434444444344).

The spelling of 1222342012123 in words is "one trillion, two hundred twenty-two billion, three hundred forty-two million, twelve thousand, one hundred twenty-three".