222443121412 has 6 divisors (see below), whose sum is σ = 389275462478. Its totient is φ = 111221560704.

The previous prime is 222443121409. The next prime is 222443121491. The reversal of 222443121412 is 214121344222.

It can be written as a sum of positive squares in only one way, i.e., 222383923776 + 59197636 = 471576^2 + 7694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805390173 + ... + 27805390180.

Almost surely, 2^222443121412 is an apocalyptic number.

It is an amenable number.

222443121412 is a deficient number, since it is larger than the sum of its proper divisors (166832341066).

222443121412 is a wasteful number, since it uses less digits than its factorization.

222443121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55610780357 (or 55610780355 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 222443121412 its reverse (214121344222), we get a palindrome (436564465634).

The spelling of 222443121412 in words is "two hundred twenty-two billion, four hundred forty-three million, one hundred twenty-one thousand, four hundred twelve".