11331202020221 has 16 divisors (see below), whose sum is σ = 11772079401600. Its totient is φ = 10898185267200.

The previous prime is 11331202020217. The next prime is 11331202020227. The reversal of 11331202020221 is 12202020213311.

It is a cyclic number.

It is not a de Polignac number, because 11331202020221 - 2² = 11331202020217 is a prime.

It is a super-2 number, since 2×11331202020221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331202020193 and 11331202020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331202020227) 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, 34679150 + ... + 35004368.

It is an arithmetic number, because the mean of its divisors is an integer number (735754962600).

Almost surely, 2^{11331202020221} is an apocalyptic number.

It is an amenable number.

11331202020221 is a deficient number, since it is larger than the sum of its proper divisors (440877381379).

11331202020221 is a wasteful number, since it uses less digits than its factorization.

11331202020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337300.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11331202020221 its reverse (12202020213311), we get a palindrome (23533222233532).

The spelling of 11331202020221 in words is "eleven trillion, three hundred thirty-one billion, two hundred two million, twenty thousand, two hundred twenty-one".