222201122122222 has 16 divisors (see below), whose sum is σ = 338740347708000. Its totient is φ = 109300218825600.

The previous prime is 222201122122159. The next prime is 222201122122297. The reversal of 222201122122222 is 222221221102222.

It is a super-2 number, since 2×222201122122222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3136449279 + ... + 3136520122.

It is an arithmetic number, because the mean of its divisors is an integer number (21171271731750).

Almost surely, 2^{222201122122222} is an apocalyptic number.

222201122122222 is a deficient number, since it is larger than the sum of its proper divisors (116539225585778).

222201122122222 is a wasteful number, since it uses less digits than its factorization.

222201122122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272969691.

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

Adding to 222201122122222 its reverse (222221221102222), we get a palindrome (444422343224444).

The spelling of 222201122122222 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".