1022111002111 has 2 divisors, whose sum is σ = 1022111002112. Its totient is φ = 1022111002110.

The previous prime is 1022111002109. The next prime is 1022111002151. The reversal of 1022111002111 is 1112001112201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022111002111 - 2¹ = 1022111002109 is a prime.

Together with 1022111002109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1022111002091 and 1022111002100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022111002151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511055501055 + 511055501056.

It is an arithmetic number, because the mean of its divisors is an integer number (511055501056).

Almost surely, 2^{1022111002111} is an apocalyptic number.

1022111002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022111002111 is an equidigital number, since it uses as much as digits as its factorization.

1022111002111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1022111002111 its reverse (1112001112201), we get a palindrome (2134112114312).

The spelling of 1022111002111 in words is "one trillion, twenty-two billion, one hundred eleven million, two thousand, one hundred eleven".