212440001222 has 16 divisors (see below), whose sum is σ = 326801710080. Its totient is φ = 103525010568.

The previous prime is 212440001201. The next prime is 212440001261. The reversal of 212440001222 is 222100044212.

212440001222 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 2×212440001222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212440001194 and 212440001203.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4705568 + ... + 4750499.

It is an arithmetic number, because the mean of its divisors is an integer number (20425106880).

Almost surely, 2^212440001222 is an apocalyptic number.

212440001222 is a deficient number, since it is larger than the sum of its proper divisors (114361708858).

212440001222 is a wasteful number, since it uses less digits than its factorization.

212440001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9456355.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212440001222 its reverse (222100044212), we get a palindrome (434540045434).

The spelling of 212440001222 in words is "two hundred twelve billion, four hundred forty million, one thousand, two hundred twenty-two".