11202001221 has 8 divisors (see below), whose sum is σ = 15001799904. Its totient is φ = 7435101680.

The previous prime is 11202001219. The next prime is 11202001229. The reversal of 11202001221 is 12210020211.

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 11202001221 - 2¹ = 11202001219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202001197 and 11202001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202001229) 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, 8223990 + ... + 8225351.

It is an arithmetic number, because the mean of its divisors is an integer number (1875224988).

Almost surely, 2^11202001221 is an apocalyptic number.

It is an amenable number.

11202001221 is a deficient number, since it is larger than the sum of its proper divisors (3799798683).

11202001221 is a wasteful number, since it uses less digits than its factorization.

11202001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16449571.

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

Adding to 11202001221 its reverse (12210020211), we get a palindrome (23412021432).

The spelling of 11202001221 in words is "eleven billion, two hundred two million, one thousand, two hundred twenty-one".