222101110222222 has 32 divisors (see below), whose sum is σ = 415361079463680. Its totient is φ = 86532241951680.

The previous prime is 222101110222193. The next prime is 222101110222223. The reversal of 222101110222222 is 222222011101222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 222101110222193 and 222101110222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101110222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15079029 + ... + 25914847.

It is an arithmetic number, because the mean of its divisors is an integer number (12980033733240).

Almost surely, 2^{222101110222222} is an apocalyptic number.

222101110222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222101110222222 is a deficient number, since it is larger than the sum of its proper divisors (193259969241458).

222101110222222 is a wasteful number, since it uses less digits than its factorization.

222101110222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968936.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222101110222222 its reverse (222222011101222), we get a palindrome (444323121323444).

The spelling of 222101110222222 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-two".