11422001 has 4 divisors (see below), whose sum is σ = 11526900. Its totient is φ = 11317104.

The previous prime is 11421973. The next prime is 11422013. The reversal of 11422001 is 10022411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 8271376 = 1775^2 + 2876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11422001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11422031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52286 + ... + 52503.

It is an arithmetic number, because the mean of its divisors is an integer number (2881725).

Almost surely, 2^11422001 is an apocalyptic number.

It is an amenable number.

11422001 is a deficient number, since it is larger than the sum of its proper divisors (104899).

11422001 is a wasteful number, since it uses less digits than its factorization.

11422001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104898.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11422001 is about 3379.6450997109. The cubic root of 11422001 is about 225.2064015482.

Adding to 11422001 its reverse (10022411), we get a palindrome (21444412).

The spelling of 11422001 in words is "eleven million, four hundred twenty-two thousand, one".