222222110202212 has 6 divisors (see below), whose sum is σ = 388888692853878. Its totient is φ = 111111055101104.

The previous prime is 222222110202187. The next prime is 222222110202247. The reversal of 222222110202212 is 212202011222222.

It can be written as a sum of positive squares in only one way, i.e., 130203252920896 + 92018857281316 = 11410664^2 + 9592646^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777763775273 + ... + 27777763775280.

It is an arithmetic number, because the mean of its divisors is an integer number (64814782142313).

Almost surely, 2^{222222110202212} is an apocalyptic number.

It is an amenable number.

222222110202212 is a deficient number, since it is larger than the sum of its proper divisors (166666582651666).

222222110202212 is a wasteful number, since it uses less digits than its factorization.

222222110202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555527550557 (or 55555527550555 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222110202212 its reverse (212202011222222), we get a palindrome (434424121424434).

The spelling of 222222110202212 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred ten million, two hundred two thousand, two hundred twelve".