212201112111122 has 4 divisors (see below), whose sum is σ = 318301668166686. Its totient is φ = 106100556055560.

The previous prime is 212201112111061. The next prime is 212201112111203. The reversal of 212201112111122 is 221111211102212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 186292716890281 + 25908395220841 = 13648909^2 + 5090029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212201112111094 and 212201112111103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53050278027779 + ... + 53050278027782.

Almost surely, 2^{212201112111122} is an apocalyptic number.

212201112111122 is a deficient number, since it is larger than the sum of its proper divisors (106100556055564).

212201112111122 is a wasteful number, since it uses less digits than its factorization.

212201112111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106100556055563.

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

Adding to 212201112111122 its reverse (221111211102212), we get a palindrome (433312323213334).

The spelling of 212201112111122 in words is "two hundred twelve trillion, two hundred one billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-two".