222111222220222 has 8 divisors (see below), whose sum is σ = 333168037889400. Its totient is φ = 111055209590424.

The previous prime is 222111222220219. The next prime is 222111222220259. The reversal of 222111222220222 is 222022222111222.

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

It is a super-2 number, since 2×222111222220222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 200067897 + ... + 201175012.

It is an arithmetic number, because the mean of its divisors is an integer number (41646004736175).

Almost surely, 2^{222111222220222} is an apocalyptic number.

222111222220222 is a deficient number, since it is larger than the sum of its proper divisors (111056815669178).

222111222220222 is a wasteful number, since it uses less digits than its factorization.

222111222220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401519690.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222111222220222 its reverse (222022222111222), we get a palindrome (444133444331444).

The spelling of 222111222220222 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".