11220002021221 has 8 divisors (see below), whose sum is σ = 12920743877184. Its totient is φ = 9543731271360.

The previous prime is 11220002021219. The next prime is 11220002021279. The reversal of 11220002021221 is 12212020002211.

It is a happy number.

11220002021221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11220002021221 - 2¹ = 11220002021219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220002021195 and 11220002021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220002121221) 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, 6117775540 + ... + 6117777373.

It is an arithmetic number, because the mean of its divisors is an integer number (1615092984648).

Almost surely, 2^{11220002021221} is an apocalyptic number.

It is an amenable number.

11220002021221 is a deficient number, since it is larger than the sum of its proper divisors (1700741855963).

11220002021221 is a wasteful number, since it uses less digits than its factorization.

11220002021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235553051.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220002021221 its reverse (12212020002211), we get a palindrome (23432022023432).

The spelling of 11220002021221 in words is "eleven trillion, two hundred twenty billion, two million, twenty-one thousand, two hundred twenty-one".