212103222111 has 192 divisors, whose sum is σ = 365695948800. Its totient is φ = 121283585280.

The previous prime is 212103222059. The next prime is 212103222157. The reversal of 212103222111 is 111222301212.

212103222111 is a `hidden beast` number, since 21 + 210 + 322 + 2 + 111 = 666.

It is not a de Polignac number, because 212103222111 - 2⁷ = 212103221983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212103222181) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 545252305 + ... + 545252693.

It is an arithmetic number, because the mean of its divisors is an integer number (1904666400).

Almost surely, 2^212103222111 is an apocalyptic number.

212103222111 is a deficient number, since it is larger than the sum of its proper divisors (153592726689).

212103222111 is a wasteful number, since it uses less digits than its factorization.

212103222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 570 counting only the distinct ones).

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

Adding to 212103222111 its reverse (111222301212), we get a palindrome (323325523323).

The spelling of 212103222111 in words is "two hundred twelve billion, one hundred three million, two hundred twenty-two thousand, one hundred eleven".