20330233302121 has 16 divisors (see below), whose sum is σ = 21444121036800. Its totient is φ = 19220755843728.

The previous prime is 20330233302059. The next prime is 20330233302139. The reversal of 20330233302121 is 12120333203302.

It is a cyclic number.

It is not a de Polignac number, because 20330233302121 - 2³¹ = 20328085818473 is a prime.

It is a super-2 number, since 2×20330233302121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330233302721) 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, 32063200 + ... + 32691118.

It is an arithmetic number, because the mean of its divisors is an integer number (1340257564800).

Almost surely, 2^{20330233302121} is an apocalyptic number.

It is an amenable number.

20330233302121 is a deficient number, since it is larger than the sum of its proper divisors (1113887734679).

20330233302121 is a wasteful number, since it uses less digits than its factorization.

20330233302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631428.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20330233302121 its reverse (12120333203302), we get a palindrome (32450566505423).

The spelling of 20330233302121 in words is "twenty trillion, three hundred thirty billion, two hundred thirty-three million, three hundred two thousand, one hundred twenty-one".