1022122110491 has 2 divisors, whose sum is σ = 1022122110492. Its totient is φ = 1022122110490.

The previous prime is 1022122110479. The next prime is 1022122110557. The reversal of 1022122110491 is 1940112212201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022122110491 - 2¹⁴ = 1022122094107 is a prime.

It is a super-2 number, since 2×1022122110491² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022122110491.

It is not a weakly prime, because it can be changed into another prime (1022122110091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511061055245 + 511061055246.

It is an arithmetic number, because the mean of its divisors is an integer number (511061055246).

Almost surely, 2^{1022122110491} is an apocalyptic number.

1022122110491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022122110491 is an equidigital number, since it uses as much as digits as its factorization.

1022122110491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 1022122110491 its reverse (1940112212201), we get a palindrome (2962234322692).

The spelling of 1022122110491 in words is "one trillion, twenty-two billion, one hundred twenty-two million, one hundred ten thousand, four hundred ninety-one".