11200012020221 has 8 divisors (see below), whose sum is σ = 11315072654904. Its totient is φ = 11085033139200.

The previous prime is 11200012020151. The next prime is 11200012020287. The reversal of 11200012020221 is 12202021000211.

It can be written as a sum of positive squares in 4 ways, for example, as 8158078375225 + 3041933644996 = 2856235^2 + 1744114^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11200012020221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200012020196 and 11200012020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200012050221) 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, 20162996 + ... + 20711021.

It is an arithmetic number, because the mean of its divisors is an integer number (1414384081863).

Almost surely, 2^{11200012020221} is an apocalyptic number.

It is an amenable number.

11200012020221 is a deficient number, since it is larger than the sum of its proper divisors (115060634683).

11200012020221 is a wasteful number, since it uses less digits than its factorization.

11200012020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40876831.

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

Adding to 11200012020221 its reverse (12202021000211), we get a palindrome (23402033020432).

The spelling of 11200012020221 in words is "eleven trillion, two hundred billion, twelve million, twenty thousand, two hundred twenty-one".