220322200212 has 36 divisors (see below), whose sum is σ = 560472872596. Its totient is φ = 72972956160.

The previous prime is 220322200207. The next prime is 220322200229. The reversal of 220322200212 is 212002223022.

220322200212 is a `hidden beast` number, since 220 + 32 + 2 + 200 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 163471427856 + 56850772356 = 404316^2 + 238434^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×220322200212² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19484989 + ... + 19496292.

Almost surely, 2^220322200212 is an apocalyptic number.

It is an amenable number.

220322200212 is an abundant number, since it is smaller than the sum of its proper divisors (340150672384).

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

220322200212 is a wasteful number, since it uses less digits than its factorization.

220322200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38981448 (or 38981443 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 220322200212 its reverse (212002223022), we get a palindrome (432324423234).

The spelling of 220322200212 in words is "two hundred twenty billion, three hundred twenty-two million, two hundred thousand, two hundred twelve".