12222222043 has 4 divisors (see below), whose sum is σ = 12230409888. Its totient is φ = 12214034200.

The previous prime is 12222222031. The next prime is 12222222049. The reversal of 12222222043 is 34022222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34022222221 = 13 ⋅2617094017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222222043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222222049) 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, 4091683 + ... + 4094668.

It is an arithmetic number, because the mean of its divisors is an integer number (3057602472).

Almost surely, 2^12222222043 is an apocalyptic number.

12222222043 is a deficient number, since it is larger than the sum of its proper divisors (8187845).

12222222043 is an equidigital number, since it uses as much as digits as its factorization.

12222222043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187844.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12222222043 its reverse (34022222221), we get a palindrome (46244444264).

The spelling of 12222222043 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, forty-three".