2122012111 has 2 divisors, whose sum is σ = 2122012112. Its totient is φ = 2122012110.

The previous prime is 2122012103. The next prime is 2122012133. The reversal of 2122012111 is 1112102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122012111 - 2³ = 2122012103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122012091 and 2122012100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122012181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061006055 + 1061006056.

It is an arithmetic number, because the mean of its divisors is an integer number (1061006056).

Almost surely, 2^2122012111 is an apocalyptic number.

2122012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122012111 is an equidigital number, since it uses as much as digits as its factorization.

2122012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2122012111 is about 46065.3026799998. The cubic root of 2122012111 is about 1285.0379476749.

Adding to 2122012111 its reverse (1112102212), we get a palindrome (3234114323).

The spelling of 2122012111 in words is "two billion, one hundred twenty-two million, twelve thousand, one hundred eleven".