11212221100120 has 32 divisors (see below), whose sum is σ = 25842802295520. Its totient is φ = 4375500916480.

The previous prime is 11212221100099. The next prime is 11212221100123. The reversal of 11212221100120 is 2100112221211.

It is a super-2 number, since 2×11212221100120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212221100094 and 11212221100103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212221100123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418358452 + ... + 3418361731.

It is an arithmetic number, because the mean of its divisors is an integer number (807587571735).

Almost surely, 2^{11212221100120} is an apocalyptic number.

11212221100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212221100120 is an abundant number, since it is smaller than the sum of its proper divisors (14630581195400).

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

11212221100120 is a wasteful number, since it uses less digits than its factorization.

11212221100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836720235 (or 6836720231 counting only the distinct ones).

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

Adding to 11212221100120 its reverse (2100112221211), we get a palindrome (13312333321331).

The spelling of 11212221100120 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-one million, one hundred thousand, one hundred twenty".