1012211111011 has 2 divisors, whose sum is σ = 1012211111012. Its totient is φ = 1012211111010.

The previous prime is 1012211110979. The next prime is 1012211111047. The reversal of 1012211111011 is 1101111122101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1101111122101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012211111011 - 2⁵ = 1012211110979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012211110982 and 1012211111000.

It is not a weakly prime, because it can be changed into another prime (1012211115011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506105555505 + 506105555506.

It is an arithmetic number, because the mean of its divisors is an integer number (506105555506).

Almost surely, 2^{1012211111011} is an apocalyptic number.

1012211111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012211111011 is an equidigital number, since it uses as much as digits as its factorization.

1012211111011 is an evil number, because the sum of its binary digits is even.

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

Adding to 1012211111011 its reverse (1101111122101), we get a palindrome (2113322233112).

The spelling of 1012211111011 in words is "one trillion, twelve billion, two hundred eleven million, one hundred eleven thousand, eleven".