212220201111 has 8 divisors (see below), whose sum is σ = 297852913920. Its totient is φ = 134033811192.

The previous prime is 212220201041. The next prime is 212220201113. The reversal of 212220201111 is 111102022212.

212220201111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212220201111 - 2¹⁷ = 212220070039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220201113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861580655 + ... + 1861580768.

It is an arithmetic number, because the mean of its divisors is an integer number (37231614240).

Almost surely, 2^212220201111 is an apocalyptic number.

212220201111 is a deficient number, since it is larger than the sum of its proper divisors (85632712809).

212220201111 is a wasteful number, since it uses less digits than its factorization.

212220201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723161445.

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

Adding to 212220201111 its reverse (111102022212), we get a palindrome (323322223323).

The spelling of 212220201111 in words is "two hundred twelve billion, two hundred twenty million, two hundred one thousand, one hundred eleven".