11220212210 has 32 divisors (see below), whose sum is σ = 20419499952. Its totient is φ = 4438604800.

The previous prime is 11220212209. The next prime is 11220212221. The reversal of 11220212210 is 1221202211.

It can be written as a sum of positive squares in 8 ways, for example, as 8785875289 + 2434336921 = 93733^2 + 49339^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956702 + ... + 968358.

Almost surely, 2^11220212210 is an apocalyptic number.

11220212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220212210 is a deficient number, since it is larger than the sum of its proper divisors (9199287742).

11220212210 is a wasteful number, since it uses less digits than its factorization.

11220212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12718.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220212210 its reverse (1221202211), we get a palindrome (12441414421).

Subtracting from 11220212210 its reverse (1221202211), we obtain a palindrome (9999009999).

The spelling of 11220212210 in words is "eleven billion, two hundred twenty million, two hundred twelve thousand, two hundred ten".