11221111012210 has 64 divisors (see below), whose sum is σ = 22811270803200. Its totient is φ = 3936712057600.

The previous prime is 11221111012207. The next prime is 11221111012291. The reversal of 11221111012210 is 1221011112211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2874180 + ... + 5541040.

It is an arithmetic number, because the mean of its divisors is an integer number (356426106300).

Almost surely, 2^{11221111012210} is an apocalyptic number.

11221111012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221111012210 is an abundant number, since it is smaller than the sum of its proper divisors (11590159790990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221111012210 is a wasteful number, since it uses less digits than its factorization.

11221111012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668227.

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

Adding to 11221111012210 its reverse (1221011112211), we get a palindrome (12442122124421).

The spelling of 11221111012210 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred ten".