2221442210 has 16 divisors (see below), whose sum is σ = 4306180536. Its totient is φ = 820224768.

The previous prime is 2221442147. The next prime is 2221442231. The reversal of 2221442210 is 122441222.

It can be written as a sum of positive squares in 4 ways, for example, as 1729977649 + 491464561 = 41593^2 + 22169^2 .

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, 8543879 + ... + 8544138.

Almost surely, 2^2221442210 is an apocalyptic number.

2221442210 is a deficient number, since it is larger than the sum of its proper divisors (2084738326).

2221442210 is a wasteful number, since it uses less digits than its factorization.

2221442210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17088037.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2221442210 is about 47132.1780740080. The cubic root of 2221442210 is about 1304.8031802916.

Adding to 2221442210 its reverse (122441222), we get a palindrome (2343883432).

The spelling of 2221442210 in words is "two billion, two hundred twenty-one million, four hundred forty-two thousand, two hundred ten".