222444400012 has 12 divisors (see below), whose sum is σ = 395875627560. Its totient is φ = 109337077856.

The previous prime is 222444399977. The next prime is 222444400159. The reversal of 222444400012 is 210004444222.

222444400012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222444400012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222444400012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471280273 + ... + 471280744.

It is an arithmetic number, because the mean of its divisors is an integer number (32989635630).

Almost surely, 2^222444400012 is an apocalyptic number.

It is an amenable number.

222444400012 is a deficient number, since it is larger than the sum of its proper divisors (173431227548).

222444400012 is a wasteful number, since it uses less digits than its factorization.

222444400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942561080 (or 942561078 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 222444400012 its reverse (210004444222), we get a palindrome (432448844234).

The spelling of 222444400012 in words is "two hundred twenty-two billion, four hundred forty-four million, four hundred thousand, twelve".