1122201391 has 2 divisors, whose sum is σ = 1122201392. Its totient is φ = 1122201390.

The previous prime is 1122201361. The next prime is 1122201403. The reversal of 1122201391 is 1931022211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122201391 - 2⁹ = 1122200879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122201361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561100695 + 561100696.

It is an arithmetic number, because the mean of its divisors is an integer number (561100696).

Almost surely, 2^1122201391 is an apocalyptic number.

1122201391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122201391 is an equidigital number, since it uses as much as digits as its factorization.

1122201391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1122201391 is about 33499.2744846810. The cubic root of 1122201391 is about 1039.1787744669.

The spelling of 1122201391 in words is "one billion, one hundred twenty-two million, two hundred one thousand, three hundred ninety-one".