20113021221101 has 8 divisors (see below), whose sum is σ = 20115406570560. Its totient is φ = 20110636046592.

The previous prime is 20113021221089. The next prime is 20113021221127. The reversal of 20113021221101 is 10112212031102.

It is a happy number.

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-20113021221101 is a prime.

It is a super-2 number, since 2×20113021221101² (a number of 27 digits) contains 22 as substring.

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 20113021221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113021221191) 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, 473973581 + ... + 474016013.

It is an arithmetic number, because the mean of its divisors is an integer number (2514425821320).

Almost surely, 2^{20113021221101} is an apocalyptic number.

It is an amenable number.

20113021221101 is a deficient number, since it is larger than the sum of its proper divisors (2385349459).

20113021221101 is a wasteful number, since it uses less digits than its factorization.

20113021221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87475.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20113021221101 its reverse (10112212031102), we get a palindrome (30225233252203).

The spelling of 20113021221101 in words is "twenty trillion, one hundred thirteen billion, twenty-one million, two hundred twenty-one thousand, one hundred one".