222021212012 has 12 divisors (see below), whose sum is σ = 408986443320. Its totient is φ = 105167942496.

The previous prime is 222021212003. The next prime is 222021212041. The reversal of 222021212012 is 210212120222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460665793 + ... + 1460665944.

It is an arithmetic number, because the mean of its divisors is an integer number (34082203610).

Almost surely, 2^222021212012 is an apocalyptic number.

It is an amenable number.

222021212012 is a deficient number, since it is larger than the sum of its proper divisors (186965231308).

222021212012 is a wasteful number, since it uses less digits than its factorization.

222021212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921331760 (or 2921331758 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222021212012 its reverse (210212120222), we get a palindrome (432233332234).

The spelling of 222021212012 in words is "two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, twelve".