222031212 has 24 divisors (see below), whose sum is σ = 557924976. Its totient is φ = 68317248.

The previous prime is 222031189. The next prime is 222031217. The reversal of 222031212 is 212130222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222031191 and 222031200.

It is not an unprimeable number, because it can be changed into a prime (222031217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711483 + ... + 711794.

It is an arithmetic number, because the mean of its divisors is an integer number (23246874).

Almost surely, 2^222031212 is an apocalyptic number.

It is an amenable number.

222031212 is an abundant number, since it is smaller than the sum of its proper divisors (335893764).

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

222031212 is a wasteful number, since it uses less digits than its factorization.

222031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423297 (or 1423295 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222031212 is about 14900.7117950788. The cubic root of 222031212 is about 605.5332702264.

Adding to 222031212 its reverse (212130222), we get a palindrome (434161434).

The spelling of 222031212 in words is "two hundred twenty-two million, thirty-one thousand, two hundred twelve".