222110020212 has 12 divisors (see below), whose sum is σ = 518256713856. Its totient is φ = 74036673400.

The previous prime is 222110020199. The next prime is 222110020213. The reversal of 222110020212 is 212020011222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×222110020212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222110020191 and 222110020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222110020213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9254584164 + ... + 9254584187.

It is an arithmetic number, because the mean of its divisors is an integer number (43188059488).

Almost surely, 2^222110020212 is an apocalyptic number.

It is an amenable number.

222110020212 is an abundant number, since it is smaller than the sum of its proper divisors (296146693644).

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

222110020212 is a wasteful number, since it uses less digits than its factorization.

222110020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18509168358 (or 18509168356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222110020212 its reverse (212020011222), we get a palindrome (434130031434).

The spelling of 222110020212 in words is "two hundred twenty-two billion, one hundred ten million, twenty thousand, two hundred twelve".