22012100111 has 2 divisors, whose sum is σ = 22012100112. Its totient is φ = 22012100110.

The previous prime is 22012100101. The next prime is 22012100119. The reversal of 22012100111 is 11100121022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012100111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22012100092 and 22012100101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012100119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006050055 + 11006050056.

It is an arithmetic number, because the mean of its divisors is an integer number (11006050056).

Almost surely, 2^22012100111 is an apocalyptic number.

22012100111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012100111 is an equidigital number, since it uses as much as digits as its factorization.

22012100111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22012100111 its reverse (11100121022), we get a palindrome (33112221133).

The spelling of 22012100111 in words is "twenty-two billion, twelve million, one hundred thousand, one hundred eleven".