222011221222 has 32 divisors (see below), whose sum is σ = 382405017600. Its totient is φ = 94695129888.

The previous prime is 222011221219. The next prime is 222011221241. The reversal of 222011221222 is 222122110222.

It is a self number, because there is not a number n which added to its sum of digits gives 222011221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2514843 + ... + 2601625.

It is an arithmetic number, because the mean of its divisors is an integer number (11950156800).

Almost surely, 2^222011221222 is an apocalyptic number.

222011221222 is a deficient number, since it is larger than the sum of its proper divisors (160393796378).

222011221222 is a wasteful number, since it uses less digits than its factorization.

222011221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87660.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222011221222 its reverse (222122110222), we get a palindrome (444133331444).

The spelling of 222011221222 in words is "two hundred twenty-two billion, eleven million, two hundred twenty-one thousand, two hundred twenty-two".