222220001012 has 12 divisors (see below), whose sum is σ = 389783122596. Its totient is φ = 110853394560.

The previous prime is 222220000997. The next prime is 222220001021. The reversal of 222220001012 is 210100022222.

It can be written as a sum of positive squares in 2 ways, for example, as 77130620176 + 145089380836 = 277724^2 + 380906^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64149539 + ... + 64153002.

It is an arithmetic number, because the mean of its divisors is an integer number (32481926883).

Almost surely, 2^222220001012 is an apocalyptic number.

It is an amenable number.

222220001012 is a deficient number, since it is larger than the sum of its proper divisors (167563121584).

222220001012 is a wasteful number, since it uses less digits than its factorization.

222220001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128302978 (or 128302976 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222220001012 its reverse (210100022222), we get a palindrome (432320023234).

The spelling of 222220001012 in words is "two hundred twenty-two billion, two hundred twenty million, one thousand, twelve".