222120001011222 has 24 divisors (see below), whose sum is σ = 502184350113264. Its totient is φ = 70820869887504.

The previous prime is 222120001011151. The next prime is 222120001011283. The reversal of 222120001011222 is 222110100021222.

It is a happy number.

222120001011222 is a `hidden beast` number, since 2 + 221 + 200 + 0 + 10 + 11 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222120001011195 and 222120001011204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268260870373 + ... + 268260871200.

It is an arithmetic number, because the mean of its divisors is an integer number (20924347921386).

Almost surely, 2^{222120001011222} is an apocalyptic number.

222120001011222 is an abundant number, since it is smaller than the sum of its proper divisors (280064349102042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222120001011222 is a wasteful number, since it uses less digits than its factorization.

222120001011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536521741604 (or 536521741601 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222120001011222 its reverse (222110100021222), we get a palindrome (444230101032444).

The spelling of 222120001011222 in words is "two hundred twenty-two trillion, one hundred twenty billion, one million, eleven thousand, two hundred twenty-two".