12211112100220 has 72 divisors (see below), whose sum is σ = 28435914590832. Its totient is φ = 4401108687360.

The previous prime is 12211112100151. The next prime is 12211112100221. The reversal of 12211112100220 is 2200121111221.

It is a super-2 number, since 2×12211112100220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211112100194 and 12211112100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211112100221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22053594 + ... + 22600513.

It is an arithmetic number, because the mean of its divisors is an integer number (394943258206).

Almost surely, 2^{12211112100220} is an apocalyptic number.

12211112100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211112100220 is an abundant number, since it is smaller than the sum of its proper divisors (16224802490612).

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

12211112100220 is a wasteful number, since it uses less digits than its factorization.

12211112100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44654251 (or 44654238 counting only the distinct ones).

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

Adding to 12211112100220 its reverse (2200121111221), we get a palindrome (14411233211441).

The spelling of 12211112100220 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, one hundred thousand, two hundred twenty".