1022122201091 has 2 divisors, whose sum is σ = 1022122201092. Its totient is φ = 1022122201090.

The previous prime is 1022122201081. The next prime is 1022122201129. The reversal of 1022122201091 is 1901022212201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022122201091 - 2¹⁸ = 1022121938947 is a prime.

It is a super-2 number, since 2×1022122201091² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1022122201081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511061100545 + 511061100546.

It is an arithmetic number, because the mean of its divisors is an integer number (511061100546).

Almost surely, 2^{1022122201091} is an apocalyptic number.

1022122201091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022122201091 is an equidigital number, since it uses as much as digits as its factorization.

1022122201091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1022122201091 its reverse (1901022212201), we get a palindrome (2923144413292).

The spelling of 1022122201091 in words is "one trillion, twenty-two billion, one hundred twenty-two million, two hundred one thousand, ninety-one".