2111111001211 has 2 divisors, whose sum is σ = 2111111001212. Its totient is φ = 2111111001210.

The previous prime is 2111111001161. The next prime is 2111111001217. The reversal of 2111111001211 is 1121001111112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111111001211 - 2²³ = 2111102612603 is a prime.

It is a super-3 number, since 3×2111111001211³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2111111001191 and 2111111001200.

It is not a weakly prime, because it can be changed into another prime (2111111001217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055555500605 + 1055555500606.

It is an arithmetic number, because the mean of its divisors is an integer number (1055555500606).

Almost surely, 2^{2111111001211} is an apocalyptic number.

2111111001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111111001211 is an equidigital number, since it uses as much as digits as its factorization.

2111111001211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 2111111001211 its reverse (1121001111112), we get a palindrome (3232112112323).

The spelling of 2111111001211 in words is "two trillion, one hundred eleven billion, one hundred eleven million, one thousand, two hundred eleven".