222111112201210 has 8 divisors (see below), whose sum is σ = 399800001962196. Its totient is φ = 88844444880480.

The previous prime is 222111112201163. The next prime is 222111112201241. The reversal of 222111112201210 is 12102211111222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209716072406929 + 12395039794281 = 14481577^2 + 3520659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11105555610051 + ... + 11105555610070.

Almost surely, 2^{222111112201210} is an apocalyptic number.

222111112201210 is a deficient number, since it is larger than the sum of its proper divisors (177688889760986).

222111112201210 is a wasteful number, since it uses less digits than its factorization.

222111112201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22211111220128.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222111112201210 its reverse (12102211111222), we get a palindrome (234213323312432).

The spelling of 222111112201210 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twelve million, two hundred one thousand, two hundred ten".