222111412 has 6 divisors (see below), whose sum is σ = 388694978. Its totient is φ = 111055704.

The previous prime is 222111401. The next prime is 222111517. The reversal of 222111412 is 214111222.

It can be written as a sum of positive squares in only one way, i.e., 218921616 + 3189796 = 14796^2 + 1786^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27763923 + ... + 27763930.

Almost surely, 2^222111412 is an apocalyptic number.

It is an amenable number.

222111412 is a deficient number, since it is larger than the sum of its proper divisors (166583566).

222111412 is a wasteful number, since it uses less digits than its factorization.

222111412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55527857 (or 55527855 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 222111412 is about 14903.4026987128. The cubic root of 222111412 is about 605.6061697702.

Adding to 222111412 its reverse (214111222), we get a palindrome (436222634).

The spelling of 222111412 in words is "two hundred twenty-two million, one hundred eleven thousand, four hundred twelve".