2221331222 has 16 divisors (see below), whose sum is σ = 3649996944. Its totient is φ = 1005504000.

The previous prime is 2221331213. The next prime is 2221331239.

It is a happy number.

2221331222 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2221331194 and 2221331203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204179 + ... + 214782.

It is an arithmetic number, because the mean of its divisors is an integer number (228124809).

Almost surely, 2^2221331222 is an apocalyptic number.

2221331222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221331222 is a deficient number, since it is larger than the sum of its proper divisors (1428665722).

2221331222 is a wasteful number, since it uses less digits than its factorization.

2221331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419215.

The product of its digits is 576, while the sum is 20.

The square root of 2221331222 is about 47131.0006471325. Note that the first 3 decimals coincide. The cubic root of 2221331222 is about 1304.7814496780.

It can be divided in two parts, 22213 and 31222, that added together give a palindrome (53435).

The spelling of 2221331222 in words is "two billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred twenty-two".