11201221112210 has 32 divisors (see below), whose sum is σ = 20879381102832. Its totient is φ = 4323886145280.

The previous prime is 11201221112203. The next prime is 11201221112243. The reversal of 11201221112210 is 1221112210211.

It can be written as a sum of positive squares in 8 ways, for example, as 5972896490401 + 5228324621809 = 2443951^2 + 2286553^2 .

It is a super-2 number, since 2×11201221112210² (a number of 27 digits) contains 22 as substring.

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, 173200289 + ... + 173264948.

Almost surely, 2^{11201221112210} is an apocalyptic number.

11201221112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11201221112210 is a deficient number, since it is larger than the sum of its proper divisors (9678159990622).

11201221112210 is a wasteful number, since it uses less digits than its factorization.

11201221112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346465358.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11201221112210 its reverse (1221112210211), we get a palindrome (12422333322421).

The spelling of 11201221112210 in words is "eleven trillion, two hundred one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred ten".