12220211122212 has 48 divisors (see below), whose sum is σ = 29285944873920. Its totient is φ = 3963112094592.

The previous prime is 12220211122201. The next prime is 12220211122241. The reversal of 12220211122212 is 21222111202221.

12220211122212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8262214 + ... + 9628322.

It is an arithmetic number, because the mean of its divisors is an integer number (610123851540).

Almost surely, 2^{12220211122212} is an apocalyptic number.

12220211122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220211122212 is an abundant number, since it is smaller than the sum of its proper divisors (17065733751708).

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

12220211122212 is a wasteful number, since it uses less digits than its factorization.

12220211122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386300 (or 1386298 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12220211122212 its reverse (21222111202221), we get a palindrome (33442322324433).

The spelling of 12220211122212 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".