2212201220220 has 72 divisors (see below), whose sum is σ = 6810498122064. Its totient is φ = 581115541248.

The previous prime is 2212201220219. The next prime is 2212201220261. The reversal of 2212201220220 is 220221022122.

2212201220220 is a `hidden beast` number, since 2 + 2 + 1 + 220 + 1 + 220 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212201220193 and 2212201220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91704409 + ... + 91728528.

Almost surely, 2^{2212201220220} is an apocalyptic number.

2212201220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212201220220 is an abundant number, since it is smaller than the sum of its proper divisors (4598296901844).

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

2212201220220 is a wasteful number, since it uses less digits than its factorization.

2212201220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183433019 (or 183433014 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2212201220220 its reverse (220221022122), we get a palindrome (2432422242342).

The spelling of 2212201220220 in words is "two trillion, two hundred twelve billion, two hundred one million, two hundred twenty thousand, two hundred twenty".