11112201020021 has 8 divisors (see below), whose sum is σ = 11131065262080. Its totient is φ = 11093352680592.

The previous prime is 11112201020003. The next prime is 11112201020023. The reversal of 11112201020021 is 12002010221111.

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-11112201020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112201019978 and 11112201020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112201020023) 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, 2576525 + ... + 5372418.

It is an arithmetic number, because the mean of its divisors is an integer number (1391383157760).

Almost surely, 2^{11112201020021} is an apocalyptic number.

It is an amenable number.

11112201020021 is a deficient number, since it is larger than the sum of its proper divisors (18864242059).

11112201020021 is a wasteful number, since it uses less digits than its factorization.

11112201020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951315.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112201020021 its reverse (12002010221111), we get a palindrome (23114211241132).

The spelling of 11112201020021 in words is "eleven trillion, one hundred twelve billion, two hundred one million, twenty thousand, twenty-one".