212100303111 has 24 divisors (see below), whose sum is σ = 285987596544. Its totient is φ = 139824149760.

The previous prime is 212100303109. The next prime is 212100303133. The reversal of 212100303111 is 111303001212.

It is a happy number.

It is not a de Polignac number, because 212100303111 - 2¹ = 212100303109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100303011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44342226 + ... + 44347008.

It is an arithmetic number, because the mean of its divisors is an integer number (11916149856).

Almost surely, 2^212100303111 is an apocalyptic number.

212100303111 is a deficient number, since it is larger than the sum of its proper divisors (73887293433).

212100303111 is an equidigital number, since it uses as much as digits as its factorization.

212100303111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551 (or 6454 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 212100303111 its reverse (111303001212), we get a palindrome (323403304323).

The spelling of 212100303111 in words is "two hundred twelve billion, one hundred million, three hundred three thousand, one hundred eleven".