212102220110122 has 16 divisors (see below), whose sum is σ = 335358900152640. Its totient is φ = 100331275321728.

The previous prime is 212102220110113. The next prime is 212102220110147. The reversal of 212102220110122 is 221011022201212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212102220110122.

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, 3838787623 + ... + 3838842874.

It is an arithmetic number, because the mean of its divisors is an integer number (20959931259540).

Almost surely, 2^{212102220110122} is an apocalyptic number.

212102220110122 is a deficient number, since it is larger than the sum of its proper divisors (123256680042518).

212102220110122 is a wasteful number, since it uses less digits than its factorization.

212102220110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677631245.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212102220110122 its reverse (221011022201212), we get a palindrome (433113242311334).

The spelling of 212102220110122 in words is "two hundred twelve trillion, one hundred two billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-two".