211020110122 has 16 divisors (see below), whose sum is σ = 319365387432. Its totient is φ = 104568960960.

The previous prime is 211020110111. The next prime is 211020110129. The reversal of 211020110122 is 221011020112.

It can be written as a sum of positive squares in 4 ways, for example, as 112762311601 + 98257798521 = 335801^2 + 313461^2 .

It is not an unprimeable number, because it can be changed into a prime (211020110129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888693 + ... + 1100824.

Almost surely, 2^211020110122 is an apocalyptic number.

211020110122 is a deficient number, since it is larger than the sum of its proper divisors (108345277310).

211020110122 is a wasteful number, since it uses less digits than its factorization.

211020110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989993.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211020110122 its reverse (221011020112), we get a palindrome (432031130234).

The spelling of 211020110122 in words is "two hundred eleven billion, twenty million, one hundred ten thousand, one hundred twenty-two".