212011221110122 has 64 divisors (see below), whose sum is σ = 376680768387840. Its totient is φ = 87565404326400.

The previous prime is 212011221110023. The next prime is 212011221110131. The reversal of 212011221110122 is 221011122110212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212011221110122.

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 in 31 ways as a sum of consecutive naturals, for example, 5490934597 + ... + 5490973207.

It is an arithmetic number, because the mean of its divisors is an integer number (5885637006060).

Almost surely, 2^{212011221110122} is an apocalyptic number.

212011221110122 is a deficient number, since it is larger than the sum of its proper divisors (164669547277718).

212011221110122 is a wasteful number, since it uses less digits than its factorization.

212011221110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63487.

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

Adding to 212011221110122 its reverse (221011122110212), we get a palindrome (433022343220334).

The spelling of 212011221110122 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-two".