1122122201 has 24 divisors (see below), whose sum is σ = 1207894680. Its totient is φ = 1040772096.

The previous prime is 1122122189. The next prime is 1122122203. The reversal of 1122122201 is 1022212211.

It can be written as a sum of positive squares in 12 ways, for example, as 26512201 + 1095610000 = 5149^2 + 33100^2 .

It is not a de Polignac number, because 1122122201 - 2³⁰ = 48380377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122122203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8190605 + ... + 8190741.

It is an arithmetic number, because the mean of its divisors is an integer number (50328945).

Almost surely, 2^1122122201 is an apocalyptic number.

It is an amenable number.

1122122201 is a deficient number, since it is larger than the sum of its proper divisors (85772479).

1122122201 is an equidigital number, since it uses as much as digits as its factorization.

1122122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1122122201 is about 33498.0924979319. The cubic root of 1122122201 is about 1039.1543301014.

Adding to 1122122201 its reverse (1022212211), we get a palindrome (2144334412).

The spelling of 1122122201 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred one".