12211222110220 has 96 divisors (see below), whose sum is σ = 30480105148416. Its totient is φ = 4022301024000.

The previous prime is 12211222110163. The next prime is 12211222110251. The reversal of 12211222110220 is 2201122211221.

It is a super-2 number, since 2×12211222110220² (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 31 ways as a sum of consecutive naturals, for example, 16259356 + ... + 16993795.

It is an arithmetic number, because the mean of its divisors is an integer number (317501095296).

Almost surely, 2^{12211222110220} is an apocalyptic number.

12211222110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211222110220 is an abundant number, since it is smaller than the sum of its proper divisors (18268883038196).

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

12211222110220 is a wasteful number, since it uses less digits than its factorization.

12211222110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33253271 (or 33253269 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12211222110220 its reverse (2201122211221), we get a palindrome (14412344321441).

The spelling of 12211222110220 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty".