222120122222 has 16 divisors (see below), whose sum is σ = 334183898880. Its totient is φ = 110725573368.

The previous prime is 222120122183. The next prime is 222120122261. The reversal of 222120122222 is 222221021222.

It is an interprime number because it is at equal distance from previous prime (222120122183) and next prime (222120122261).

It is a junction number, because it is equal to n+sod(n) for n = 222120122194 and 222120122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7020683 + ... + 7052249.

It is an arithmetic number, because the mean of its divisors is an integer number (20886493680).

Almost surely, 2^222120122222 is an apocalyptic number.

222120122222 is a deficient number, since it is larger than the sum of its proper divisors (112063776658).

222120122222 is a wasteful number, since it uses less digits than its factorization.

222120122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42055.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222120122222 its reverse (222221021222), we get a palindrome (444341143444).

The spelling of 222120122222 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty-two".