7122112223 has 4 divisors (see below), whose sum is σ = 7207920888. Its totient is φ = 7036303560.

The previous prime is 7122112187. The next prime is 7122112303. The reversal of 7122112223 is 3222112217.

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 7122112223 - 2⁸ = 7122111967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122112423) 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, 42904208 + ... + 42904373.

It is an arithmetic number, because the mean of its divisors is an integer number (1801980222).

Almost surely, 2^7122112223 is an apocalyptic number.

7122112223 is a deficient number, since it is larger than the sum of its proper divisors (85808665).

7122112223 is an equidigital number, since it uses as much as digits as its factorization.

7122112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85808664.

The product of its digits is 672, while the sum is 23.

The square root of 7122112223 is about 84392.6076324224. The cubic root of 7122112223 is about 1923.9905629519.

The spelling of 7122112223 in words is "seven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-three".