11213220001 has 4 divisors (see below), whose sum is σ = 11220584112. Its totient is φ = 11205855892.

The previous prime is 11213219999. The next prime is 11213220023. The reversal of 11213220001 is 10002231211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11213220001 - 2¹ = 11213219999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213226001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3679771 + ... + 3682816.

It is an arithmetic number, because the mean of its divisors is an integer number (2805146028).

Almost surely, 2^11213220001 is an apocalyptic number.

It is an amenable number.

11213220001 is a deficient number, since it is larger than the sum of its proper divisors (7364111).

11213220001 is an equidigital number, since it uses as much as digits as its factorization.

11213220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364110.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11213220001 its reverse (10002231211), we get a palindrome (21215451212).

The spelling of 11213220001 in words is "eleven billion, two hundred thirteen million, two hundred twenty thousand, one".