212220120211 has 12 divisors (see below), whose sum is σ = 246988319256. Its totient is φ = 181578710720.

The previous prime is 212220120197. The next prime is 212220120223. The reversal of 212220120211 is 112021022212.

It is a happy number.

It is not a de Polignac number, because 212220120211 - 2⁷ = 212220120083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212220120271) 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 11 ways as a sum of consecutive naturals, for example, 51582805 + ... + 51586918.

It is an arithmetic number, because the mean of its divisors is an integer number (20582359938).

Almost surely, 2^212220120211 is an apocalyptic number.

212220120211 is a deficient number, since it is larger than the sum of its proper divisors (34768199045).

212220120211 is a wasteful number, since it uses less digits than its factorization.

212220120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103169762 (or 103169751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212220120211 its reverse (112021022212), we get a palindrome (324241142423).

It can be divided in two parts, 2122201 and 20211, that added together give a palindrome (2142412).

The spelling of 212220120211 in words is "two hundred twelve billion, two hundred twenty million, one hundred twenty thousand, two hundred eleven".