222111201222012 has 12 divisors (see below), whose sum is σ = 518259469518056. Its totient is φ = 74037067074000.

The previous prime is 222111201222011. The next prime is 222111201222023. The reversal of 222111201222012 is 210222102111222.

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

It is a super-2 number, since 2×222111201222012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222111201222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111201222011) 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, 9254633384239 + ... + 9254633384262.

Almost surely, 2^{222111201222012} is an apocalyptic number.

It is an amenable number.

222111201222012 is an abundant number, since it is smaller than the sum of its proper divisors (296148268296044).

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

222111201222012 is a wasteful number, since it uses less digits than its factorization.

222111201222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18509266768508 (or 18509266768506 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222111201222012 its reverse (210222102111222), we get a palindrome (432333303333234).

The spelling of 222111201222012 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred one million, two hundred twenty-two thousand, twelve".