2222212210 has 8 divisors (see below), whose sum is σ = 3999981996. Its totient is φ = 888884880.

The previous prime is 2222212189. The next prime is 2222212211. The reversal of 2222212210 is 122122222.

It can be written as a sum of positive squares in 2 ways, for example, as 2184721081 + 37491129 = 46741^2 + 6123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2222212211) 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, 111110601 + ... + 111110620.

Almost surely, 2^2222212210 is an apocalyptic number.

2222212210 is a deficient number, since it is larger than the sum of its proper divisors (1777769786).

2222212210 is a wasteful number, since it uses less digits than its factorization.

2222212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222221228.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2222212210 is about 47140.3458833301. The cubic root of 2222212210 is about 1304.9539205604.

Adding to 2222212210 its reverse (122122222), we get a palindrome (2344334432).

The spelling of 2222212210 in words is "two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred ten".