212011102221 has 8 divisors (see below), whose sum is σ = 282966722304. Its totient is φ = 141198108480.

The previous prime is 212011102201. The next prime is 212011102223. The reversal of 212011102221 is 122201110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212011102221 - 2⁵ = 212011102189 is a prime.

It is a super-2 number, since 2×212011102221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212011102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011102223) 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, 35653116 + ... + 35659061.

It is an arithmetic number, because the mean of its divisors is an integer number (35370840288).

Almost surely, 2^212011102221 is an apocalyptic number.

It is an amenable number.

212011102221 is a deficient number, since it is larger than the sum of its proper divisors (70955620083).

212011102221 is an equidigital number, since it uses as much as digits as its factorization.

212011102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71313171.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212011102221 its reverse (122201110212), we get a palindrome (334212212433).

The spelling of 212011102221 in words is "two hundred twelve billion, eleven million, one hundred two thousand, two hundred twenty-one".