11200012221 has 16 divisors (see below), whose sum is σ = 15552978048. Its totient is φ = 7162545600.

The previous prime is 11200012217. The next prime is 11200012223. The reversal of 11200012221 is 12221000211.

It is not a de Polignac number, because 11200012221 - 2² = 11200012217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11200012197 and 11200012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200012223) 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, 702690 + ... + 718451.

It is an arithmetic number, because the mean of its divisors is an integer number (972061128).

Almost surely, 2^11200012221 is an apocalyptic number.

It is an amenable number.

11200012221 is a deficient number, since it is larger than the sum of its proper divisors (4352965827).

11200012221 is a wasteful number, since it uses less digits than its factorization.

11200012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421252.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11200012221 its reverse (12221000211), we get a palindrome (23421012432).

The spelling of 11200012221 in words is "eleven billion, two hundred million, twelve thousand, two hundred twenty-one".