1222532148091 has 2 divisors, whose sum is σ = 1222532148092. Its totient is φ = 1222532148090.

The previous prime is 1222532148083. The next prime is 1222532148109. The reversal of 1222532148091 is 1908412352221.

Together with next prime (1222532148109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1908412352221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222532148091 - 2³ = 1222532148083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222532148011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611266074045 + 611266074046.

It is an arithmetic number, because the mean of its divisors is an integer number (611266074046).

Almost surely, 2^{1222532148091} is an apocalyptic number.

1222532148091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222532148091 is an equidigital number, since it uses as much as digits as its factorization.

1222532148091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 1222532148091 in words is "one trillion, two hundred twenty-two billion, five hundred thirty-two million, one hundred forty-eight thousand, ninety-one".