11442122001 has 12 divisors (see below), whose sum is σ = 16529602180. Its totient is φ = 7627115520.

The previous prime is 11442121997. The next prime is 11442122011. The reversal of 11442122001 is 10022124411.

11442122001 is a `hidden beast` number, since 1 + 1 + 442 + 1 + 220 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 719312400 + 10722809601 = 26820^2 + 103551^2 .

It is not a de Polignac number, because 11442122001 - 2² = 11442121997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11442122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1360 + ... + 151281.

Almost surely, 2^11442122001 is an apocalyptic number.

It is an amenable number.

11442122001 is a deficient number, since it is larger than the sum of its proper divisors (5087480179).

11442122001 is a wasteful number, since it uses less digits than its factorization.

11442122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160976 (or 160973 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11442122001 its reverse (10022124411), we get a palindrome (21464246412).

The spelling of 11442122001 in words is "eleven billion, four hundred forty-two million, one hundred twenty-two thousand, one".