2222122224 has 80 divisors (see below), whose sum is σ = 6946483968. Its totient is φ = 597543936.

The previous prime is 2222122171. The next prime is 2222122237. The reversal of 2222122224 is 4222212222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2222122224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188802 + ... + 200225.

Almost surely, 2^2222122224 is an apocalyptic number.

2222122224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2222122224 is an abundant number, since it is smaller than the sum of its proper divisors (4724361744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222122224 is a wasteful number, since it uses less digits than its factorization.

2222122224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389062 (or 389056 counting only the distinct ones).

The product of its digits is 1024, while the sum is 21.

The square root of 2222122224 is about 47139.3914258553. The cubic root of 2222122224 is about 1304.9363061058.

Adding to 2222122224 its reverse (4222212222), we get a palindrome (6444334446).

It can be divided in two parts, 222212222 and 4, that multiplied together give a palindrome (888848888).

The spelling of 2222122224 in words is "two billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-four".