11201022221 has 8 divisors (see below), whose sum is σ = 11237794560. Its totient is φ = 11164281552.

The previous prime is 11201022211. The next prime is 11201022233. The reversal of 11201022221 is 12222010211.

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

It is a cyclic number.

It is not a de Polignac number, because 11201022221 - 2¹⁰ = 11201021197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11201022196 and 11201022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201022211) 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, 848951 + ... + 862043.

It is an arithmetic number, because the mean of its divisors is an integer number (1404724320).

Almost surely, 2^11201022221 is an apocalyptic number.

It is an amenable number.

11201022221 is a deficient number, since it is larger than the sum of its proper divisors (36772339).

11201022221 is a wasteful number, since it uses less digits than its factorization.

11201022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15835.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11201022221 its reverse (12222010211), we get a palindrome (23423032432).

The spelling of 11201022221 in words is "eleven billion, two hundred one million, twenty-two thousand, two hundred twenty-one".