1111122012211 has 2 divisors, whose sum is σ = 1111122012212. Its totient is φ = 1111122012210.

The previous prime is 1111122012191. The next prime is 1111122012293. The reversal of 1111122012211 is 1122102211111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111122012211 - 2¹³ = 1111122004019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111122010211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555561006105 + 555561006106.

It is an arithmetic number, because the mean of its divisors is an integer number (555561006106).

Almost surely, 2^{1111122012211} is an apocalyptic number.

1111122012211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111122012211 is an equidigital number, since it uses as much as digits as its factorization.

1111122012211 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 16.

Adding to 1111122012211 its reverse (1122102211111), we get a palindrome (2233224223322).

The spelling of 1111122012211 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, twelve thousand, two hundred eleven".