222020212 has 12 divisors (see below), whose sum is σ = 388644480.
Its totient is φ = 110978936.
The previous prime is 222020191. The next prime is 222020213. The reversal of 222020212 is 212020222.
It is a junction number, because it is equal to n+sod(n) for n = 222020192 and 222020201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222020213) 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, 16989 + ... + 27067.
It is an arithmetic number, because the mean of its divisors is an integer number (32387040).
Almost surely, 2222020212 is an apocalyptic number.
It is an amenable number.
222020212 is a deficient number, since it is larger than the sum of its proper divisors (166624268).
222020212 is a wasteful number, since it uses less digits than its factorization.
222020212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15590 (or 15588 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 13.
The square root of 222020212 is about 14900.3426806232.
The cubic root of 222020212 is about 605.5232701669.
Adding to 222020212 its reverse (212020222), we get a palindrome (434040434).
The spelling of 222020212 in words is "two hundred twenty-two million, twenty thousand, two hundred twelve".