2011222210 has 32 divisors (see below), whose sum is σ = 3758704560. Its totient is φ = 773912832.

The previous prime is 2011222163. The next prime is 2011222229. The reversal of 2011222210 is 122221102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 540423009 + 1470799201 = 23247^2 + 38351^2 .

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, 67812 + ... + 92848.

Almost surely, 2^2011222210 is an apocalyptic number.

2011222210 is a deficient number, since it is larger than the sum of its proper divisors (1747482350).

2011222210 is a wasteful number, since it uses less digits than its factorization.

2011222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25350.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2011222210 is about 44846.6521604456. The cubic root of 2011222210 is about 1262.2731724638.

Adding to 2011222210 its reverse (122221102), we get a palindrome (2133443312).

The spelling of 2011222210 in words is "two billion, eleven million, two hundred twenty-two thousand, two hundred ten".