212011110212122 has 16 divisors (see below), whose sum is σ = 342504936205992. Its totient is φ = 97844010071040.

The previous prime is 212011110212119. The next prime is 212011110212189. The reversal of 212011110212122 is 221212011110212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 207108911255841 + 4902198956281 = 14391279^2 + 2214091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212011110212122.

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, 302625279 + ... + 303325042.

Almost surely, 2^{212011110212122} is an apocalyptic number.

212011110212122 is a deficient number, since it is larger than the sum of its proper divisors (130493825993870).

212011110212122 is a wasteful number, since it uses less digits than its factorization.

212011110212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605963793.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212011110212122 its reverse (221212011110212), we get a palindrome (433223121322334).

The spelling of 212011110212122 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-two".