222221201012 has 24 divisors (see below), whose sum is σ = 389444476680. Its totient is φ = 110951470080.

The previous prime is 222221200987. The next prime is 222221201017. The reversal of 222221201012 is 210102122222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59421862756 + 162799338256 = 243766^2 + 403484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221201017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8211728 + ... + 8238744.

It is an arithmetic number, because the mean of its divisors is an integer number (16226853195).

Almost surely, 2^222221201012 is an apocalyptic number.

It is an amenable number.

222221201012 is a deficient number, since it is larger than the sum of its proper divisors (167223275668).

222221201012 is a wasteful number, since it uses less digits than its factorization.

222221201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29891 (or 29889 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222221201012 its reverse (210102122222), we get a palindrome (432323323234).

The spelling of 222221201012 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, twelve".