222022121012 has 12 divisors (see below), whose sum is σ = 390551867076. Its totient is φ = 110435873280.

The previous prime is 222022121011. The next prime is 222022121047. The reversal of 222022121012 is 210121220222.

It is a happy number.

222022121012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62473002916 + 159549118096 = 249946^2 + 399436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022121011) by changing a digit.

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, 143795939 + ... + 143797482.

It is an arithmetic number, because the mean of its divisors is an integer number (32545988923).

Almost surely, 2^222022121012 is an apocalyptic number.

It is an amenable number.

222022121012 is a deficient number, since it is larger than the sum of its proper divisors (168529746064).

222022121012 is a wasteful number, since it uses less digits than its factorization.

222022121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287593618 (or 287593616 counting only the distinct ones).

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

Adding to 222022121012 its reverse (210121220222), we get a palindrome (432143341234).

The spelling of 222022121012 in words is "two hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, twelve".