11202001221221 has 8 divisors (see below), whose sum is σ = 11501845423488. Its totient is φ = 10903424860000.

The previous prime is 11202001221209. The next prime is 11202001221223. The reversal of 11202001221221 is 12212210020211.

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 11202001221221 - 2¹⁴ = 11202001204837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11202001221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202001221223) 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, 316942355 + ... + 316977696.

It is an arithmetic number, because the mean of its divisors is an integer number (1437730677936).

Almost surely, 2^{11202001221221} is an apocalyptic number.

It is an amenable number.

11202001221221 is a deficient number, since it is larger than the sum of its proper divisors (299844202267).

11202001221221 is an equidigital number, since it uses as much as digits as its factorization.

11202001221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633920523.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11202001221221 its reverse (12212210020211), we get a palindrome (23414211241432).

The spelling of 11202001221221 in words is "eleven trillion, two hundred two billion, one million, two hundred twenty-one thousand, two hundred twenty-one".