20113033133221 has 8 divisors (see below), whose sum is σ = 23095263504704. Its totient is φ = 17158037742720.

The previous prime is 20113033133177. The next prime is 20113033133231. The reversal of 20113033133221 is 12233133031102.

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

It is not a de Polignac number, because 20113033133221 - 2¹⁷ = 20113033002149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113033133231) 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, 6808743660 + ... + 6808746613.

It is an arithmetic number, because the mean of its divisors is an integer number (2886907938088).

Almost surely, 2^{20113033133221} is an apocalyptic number.

It is an amenable number.

20113033133221 is a deficient number, since it is larger than the sum of its proper divisors (2982230371483).

20113033133221 is a wasteful number, since it uses less digits than its factorization.

20113033133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617490491.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20113033133221 its reverse (12233133031102), we get a palindrome (32346166164323).

The spelling of 20113033133221 in words is "twenty trillion, one hundred thirteen billion, thirty-three million, one hundred thirty-three thousand, two hundred twenty-one".