203212212111 has 24 divisors (see below), whose sum is σ = 303706026000. Its totient is φ = 130779315072.

The previous prime is 203212212101. The next prime is 203212212127. The reversal of 203212212111 is 111212212302.

203212212111 is a `hidden beast` number, since 20 + 321 + 2 + 212 + 111 = 666.

203212212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203212212111 - 2¹⁵ = 203212179343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212212101) 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 23 ways as a sum of consecutive naturals, for example, 1416400 + ... + 1553258.

It is an arithmetic number, because the mean of its divisors is an integer number (12654417750).

Almost surely, 2^203212212111 is an apocalyptic number.

203212212111 is a deficient number, since it is larger than the sum of its proper divisors (100493813889).

203212212111 is a wasteful number, since it uses less digits than its factorization.

203212212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142583 (or 142580 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 203212212111 its reverse (111212212302), we get a palindrome (314424424413).

The spelling of 203212212111 in words is "two hundred three billion, two hundred twelve million, two hundred twelve thousand, one hundred eleven".