222211210120 has 16 divisors (see below), whose sum is σ = 499975222860. Its totient is φ = 88884484032.

The previous prime is 222211210079. The next prime is 222211210129. The reversal of 222211210120 is 21012112222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 222148198276 + 63011844 = 471326^2 + 7938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222211210094 and 222211210103.

It is not an unprimeable number, because it can be changed into a prime (222211210129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777640087 + ... + 2777640166.

Almost surely, 2^222211210120 is an apocalyptic number.

222211210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222211210120 is an abundant number, since it is smaller than the sum of its proper divisors (277764012740).

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

222211210120 is a wasteful number, since it uses less digits than its factorization.

222211210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555280264 (or 5555280260 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222211210120 its reverse (21012112222), we get a palindrome (243223322342).

The spelling of 222211210120 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, one hundred twenty".