222022212 has 12 divisors (see below), whose sum is σ = 518051856. Its totient is φ = 74007400.

The previous prime is 222022211. The next prime is 222022259. The reversal of 222022212 is 212220222.

222022212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 222022191 and 222022200.

It is not an unprimeable number, because it can be changed into a prime (222022211) 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, 9250914 + ... + 9250937.

It is an arithmetic number, because the mean of its divisors is an integer number (43170988).

Almost surely, 2^222022212 is an apocalyptic number.

It is an amenable number.

222022212 is an abundant number, since it is smaller than the sum of its proper divisors (296029644).

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

222022212 is a wasteful number, since it uses less digits than its factorization.

222022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501858 (or 18501856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 222022212 is about 14900.4097930225. The cubic root of 222022212 is about 605.5250883841.

Adding to 222022212 its reverse (212220222), we get a palindrome (434242434).

The spelling of 222022212 in words is "two hundred twenty-two million, twenty-two thousand, two hundred twelve".