11122211022100 has 72 divisors (see below), whose sum is σ = 24385671161600. Its totient is φ = 4402720465920.

The previous prime is 11122211022079. The next prime is 11122211022137. The reversal of 11122211022100 is 122011222111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191051197 + ... + 191109403.

Almost surely, 2^{11122211022100} is an apocalyptic number.

11122211022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11122211022100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12192835580800).

11122211022100 is an abundant number, since it is smaller than the sum of its proper divisors (13263460139500).

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

11122211022100 is a wasteful number, since it uses less digits than its factorization.

11122211022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78017 (or 78010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11122211022100 its reverse (122011222111), we get a palindrome (11244222244211).

The spelling of 11122211022100 in words is "eleven trillion, one hundred twenty-two billion, two hundred eleven million, twenty-two thousand, one hundred".