222221201102312 has 8 divisors (see below), whose sum is σ = 416664752066850. Its totient is φ = 111110600551152.

The previous prime is 222221201102237. The next prime is 222221201102359. The reversal of 222221201102312 is 213201102122222.

It can be written as a sum of positive squares in only one way, i.e., 167939465049316 + 54281736052996 = 12959146^2 + 7367614^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888825068887 + ... + 13888825068902.

Almost surely, 2^{222221201102312} is an apocalyptic number.

It is an amenable number.

222221201102312 is a deficient number, since it is larger than the sum of its proper divisors (194443550964538).

222221201102312 is a wasteful number, since it uses less digits than its factorization.

222221201102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27777650137795 (or 27777650137791 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 222221201102312 its reverse (213201102122222), we get a palindrome (435422303224534).

The spelling of 222221201102312 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred one million, one hundred two thousand, three hundred twelve".