20330231222121 has 16 divisors (see below), whose sum is σ = 28012939726848. Its totient is φ = 13101490918800.

The previous prime is 20330231222113. The next prime is 20330231222137. The reversal of 20330231222121 is 12122213203302.

It is not a de Polignac number, because 20330231222121 - 2³ = 20330231222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20330231222091 and 20330231222100.

It is not an unprimeable number, because it can be changed into a prime (20330231222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123144475 + ... + 123309456.

It is an arithmetic number, because the mean of its divisors is an integer number (1750808732928).

Almost surely, 2^{20330231222121} is an apocalyptic number.

It is an amenable number.

20330231222121 is a deficient number, since it is larger than the sum of its proper divisors (7682708504727).

20330231222121 is a wasteful number, since it uses less digits than its factorization.

20330231222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246454852.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20330231222121 its reverse (12122213203302), we get a palindrome (32452444425423).

The spelling of 20330231222121 in words is "twenty trillion, three hundred thirty billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-one".