212201111111222 has 16 divisors (see below), whose sum is σ = 318641210238672. Its totient is φ = 105987383738880.

The previous prime is 212201111111201. The next prime is 212201111111243. The reversal of 212201111111222 is 222111111102212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212201111111201) and next prime (212201111111243).

It is a junction number, because it is equal to n+sod(n) for n = 212201111111194 and 212201111111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43179278 + ... + 47841950.

It is an arithmetic number, because the mean of its divisors is an integer number (19915075639917).

Almost surely, 2^{212201111111222} is an apocalyptic number.

212201111111222 is a deficient number, since it is larger than the sum of its proper divisors (106440099127450).

212201111111222 is a wasteful number, since it uses less digits than its factorization.

212201111111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686943.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212201111111222 its reverse (222111111102212), we get a palindrome (434312222213434).

The spelling of 212201111111222 in words is "two hundred twelve trillion, two hundred one billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".