222101232212 has 6 divisors (see below), whose sum is σ = 388677156378. Its totient is φ = 111050616104.

The previous prime is 222101232181. The next prime is 222101232247. The reversal of 222101232212 is 212232101222.

It can be written as a sum of positive squares in only one way, i.e., 121608428176 + 100492804036 = 348724^2 + 317006^2 .

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, 27762654023 + ... + 27762654030.

It is an arithmetic number, because the mean of its divisors is an integer number (64779526063).

Almost surely, 2^222101232212 is an apocalyptic number.

It is an amenable number.

222101232212 is a deficient number, since it is larger than the sum of its proper divisors (166575924166).

222101232212 is a wasteful number, since it uses less digits than its factorization.

222101232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55525308057 (or 55525308055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222101232212 its reverse (212232101222), we get a palindrome (434333333434).

The spelling of 222101232212 in words is "two hundred twenty-two billion, one hundred one million, two hundred thirty-two thousand, two hundred twelve".