11222002001 has 16 divisors (see below), whose sum is σ = 13097318400. Its totient is φ = 9611189280.

The previous prime is 11222001997. The next prime is 11222002007. The reversal of 11222002001 is 10020022211.

It is a happy number.

It is not a de Polignac number, because 11222002001 - 2² = 11222001997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222002007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440720 + ... + 465486.

It is an arithmetic number, because the mean of its divisors is an integer number (818582400).

Almost surely, 2^11222002001 is an apocalyptic number.

It is an amenable number.

11222002001 is a deficient number, since it is larger than the sum of its proper divisors (1875316399).

11222002001 is an equidigital number, since it uses as much as digits as its factorization.

11222002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26109 (or 26095 counting only the distinct ones).

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

Adding to 11222002001 its reverse (10020022211), we get a palindrome (21242024212).

The spelling of 11222002001 in words is "eleven billion, two hundred twenty-two million, two thousand, one".