11220020201 has 16 divisors (see below), whose sum is σ = 12804456000. Its totient is φ = 9745956288.

The previous prime is 11220020197. The next prime is 11220020219. The reversal of 11220020201 is 10202002211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11220020201 - 2² = 11220020197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220022201) 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, 115631 + ... + 189236.

It is an arithmetic number, because the mean of its divisors is an integer number (800278500).

Almost surely, 2^11220020201 is an apocalyptic number.

It is an amenable number.

11220020201 is a deficient number, since it is larger than the sum of its proper divisors (1584435799).

11220020201 is a wasteful number, since it uses less digits than its factorization.

11220020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305048.

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

Adding to 11220020201 its reverse (10202002211), we get a palindrome (21422022412).

The spelling of 11220020201 in words is "eleven billion, two hundred twenty million, twenty thousand, two hundred one".