222401012 has 12 divisors (see below), whose sum is σ = 389337060. Its totient is φ = 111161856.

The previous prime is 222401009. The next prime is 222401027. The reversal of 222401012 is 210104222.

It can be written as a sum of positive squares in 2 ways, for example, as 109956196 + 112444816 = 10486^2 + 10604^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6164 + ... + 21972.

It is an arithmetic number, because the mean of its divisors is an integer number (32444755).

Almost surely, 2^222401012 is an apocalyptic number.

It is an amenable number.

222401012 is a deficient number, since it is larger than the sum of its proper divisors (166936048).

222401012 is a wasteful number, since it uses less digits than its factorization.

222401012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19330 (or 19328 counting only the distinct ones).

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

The square root of 222401012 is about 14913.1154357498. The cubic root of 222401012 is about 605.8692620261.

Adding to 222401012 its reverse (210104222), we get a palindrome (432505234).

The spelling of 222401012 in words is "two hundred twenty-two million, four hundred one thousand, twelve".