2122520223 has 4 divisors (see below), whose sum is σ = 2830026968. Its totient is φ = 1415013480.

The previous prime is 2122520173. The next prime is 2122520243. The reversal of 2122520223 is 3220252212.

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

It is not a de Polignac number, because 2122520223 - 2¹⁰ = 2122519199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122520223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122520243) 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, 353753368 + ... + 353753373.

It is an arithmetic number, because the mean of its divisors is an integer number (707506742).

Almost surely, 2^2122520223 is an apocalyptic number.

2122520223 is a deficient number, since it is larger than the sum of its proper divisors (707506745).

2122520223 is an equidigital number, since it uses as much as digits as its factorization.

2122520223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707506744.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2122520223 is about 46070.8174770103. The cubic root of 2122520223 is about 1285.1405061680.

Adding to 2122520223 its reverse (3220252212), we get a palindrome (5342772435).

The spelling of 2122520223 in words is "two billion, one hundred twenty-two million, five hundred twenty thousand, two hundred twenty-three".