12220210222218 has 192 divisors, whose sum is σ = 27226353623040. Its totient is φ = 3960472320000.

The previous prime is 12220210222193. The next prime is 12220210222237. The reversal of 12220210222218 is 81222201202221.

12220210222218 is a `hidden beast` number, since 1 + 2 + 220 + 2 + 1 + 0 + 222 + 218 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12220210222191 and 12220210222200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14259288046 + ... + 14259288902.

It is an arithmetic number, because the mean of its divisors is an integer number (141803925120).

Almost surely, 2^{12220210222218} is an apocalyptic number.

12220210222218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12220210222218 is an abundant number, since it is smaller than the sum of its proper divisors (15006143400822).

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

12220210222218 is a wasteful number, since it uses less digits than its factorization.

12220210222218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 12220210222218 its reverse (81222201202221), we get a palindrome (93442411424439).

The spelling of 12220210222218 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, two hundred twenty-two thousand, two hundred eighteen".