222012120222 has 48 divisors (see below), whose sum is σ = 484954470000. Its totient is φ = 73400729472.

The previous prime is 222012120199. The next prime is 222012120229. The reversal of 222012120222 is 222021210222.

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 = 222012120195 and 222012120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012120229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2582304 + ... + 2666892.

It is an arithmetic number, because the mean of its divisors is an integer number (10103218125).

Almost surely, 2^222012120222 is an apocalyptic number.

222012120222 is an abundant number, since it is smaller than the sum of its proper divisors (262942349778).

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

222012120222 is a wasteful number, since it uses less digits than its factorization.

222012120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85785 (or 85782 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222012120222 its reverse (222021210222), we get a palindrome (444033330444).

The spelling of 222012120222 in words is "two hundred twenty-two billion, twelve million, one hundred twenty thousand, two hundred twenty-two".