11200220021 has 8 divisors (see below), whose sum is σ = 11369450400. Its totient is φ = 11031050448.

The previous prime is 11200219999. The next prime is 11200220033. The reversal of 11200220021 is 12002200211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11200220021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200219984 and 11200220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200220081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473330 + ... + 496428.

It is an arithmetic number, because the mean of its divisors is an integer number (1421181300).

Almost surely, 2^11200220021 is an apocalyptic number.

It is an amenable number.

11200220021 is a deficient number, since it is larger than the sum of its proper divisors (169230379).

11200220021 is an equidigital number, since it uses as much as digits as its factorization.

11200220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30403.

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

Adding to 11200220021 its reverse (12002200211), we get a palindrome (23202420232).

The spelling of 11200220021 in words is "eleven billion, two hundred million, two hundred twenty thousand, twenty-one".