2111111137211 has 2 divisors, whose sum is σ = 2111111137212. Its totient is φ = 2111111137210.

The previous prime is 2111111137193. The next prime is 2111111137237. The reversal of 2111111137211 is 1127311111112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111111137211 - 2²² = 2111106942907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111111107211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055555568605 + 1055555568606.

It is an arithmetic number, because the mean of its divisors is an integer number (1055555568606).

Almost surely, 2^{2111111137211} is an apocalyptic number.

2111111137211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111111137211 is an equidigital number, since it uses as much as digits as its factorization.

2111111137211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 23.

Adding to 2111111137211 its reverse (1127311111112), we get a palindrome (3238422248323).

The spelling of 2111111137211 in words is "two trillion, one hundred eleven billion, one hundred eleven million, one hundred thirty-seven thousand, two hundred eleven".