2123222207 has 4 divisors (see below), whose sum is σ = 2215536240. Its totient is φ = 2030908176.

The previous prime is 2123222197. The next prime is 2123222219. The reversal of 2123222207 is 7022223212.

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 2123222207 - 2¹⁰ = 2123221183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 92314009 = 2123222207 / (2 + 1 + 2 + 3 + 2 + 2 + 2 + 2 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123222287) 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, 46156982 + ... + 46157027.

It is an arithmetic number, because the mean of its divisors is an integer number (553884060).

Almost surely, 2^2123222207 is an apocalyptic number.

2123222207 is a deficient number, since it is larger than the sum of its proper divisors (92314033).

2123222207 is an equidigital number, since it uses as much as digits as its factorization.

2123222207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92314032.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2123222207 is about 46078.4353792531. The cubic root of 2123222207 is about 1285.2821693075.

Adding to 2123222207 its reverse (7022223212), we get a palindrome (9145445419).

The spelling of 2123222207 in words is "two billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred seven".