2400222222 has 12 divisors (see below), whose sum is σ = 5200481520. Its totient is φ = 800074068.

The previous prime is 2400222199. The next prime is 2400222229. The reversal of 2400222222 is 2222220042.

It is a happy number.

It is a super-2 number, since 2×2400222222² = 11522133429965234568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 133345679 = 2400222222 / (2 + 4 + 0 + 0 + 2 + 2 + 2 + 2 + 2 + 2).

2400222222 is a modest number, since divided by 222222 gives 2400 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2400222195 and 2400222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400222229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66672822 + ... + 66672857.

It is an arithmetic number, because the mean of its divisors is an integer number (433373460).

Almost surely, 2^2400222222 is an apocalyptic number.

2400222222 is an abundant number, since it is smaller than the sum of its proper divisors (2800259298).

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

2400222222 is a wasteful number, since it uses less digits than its factorization.

2400222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133345687 (or 133345684 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2400222222 is about 48992.0628469551. The cubic root of 2400222222 is about 1338.9072218693.

Adding to 2400222222 its reverse (2222220042), we get a palindrome (4622442264).

The spelling of 2400222222 in words is "two billion, four hundred million, two hundred twenty-two thousand, two hundred twenty-two".