2220222431 has 4 divisors (see below), whose sum is σ = 2537397072. Its totient is φ = 1903047792.

The previous prime is 2220222419. The next prime is 2220222439. The reversal of 2220222431 is 1342220222.

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 2220222431 - 2¹⁰ = 2220221407 is a prime.

It is a super-2 number, since 2×2220222431² = 9858775286231099522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220222439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158587310 + ... + 158587323.

It is an arithmetic number, because the mean of its divisors is an integer number (634349268).

Almost surely, 2^2220222431 is an apocalyptic number.

2220222431 is a deficient number, since it is larger than the sum of its proper divisors (317174641).

2220222431 is an equidigital number, since it uses as much as digits as its factorization.

2220222431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317174640.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2220222431 is about 47119.2363159676. The cubic root of 2220222431 is about 1304.5643170121.

Adding to 2220222431 its reverse (1342220222), we get a palindrome (3562442653).

The spelling of 2220222431 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, four hundred thirty-one".