23212002020121 has 8 divisors (see below), whose sum is σ = 34388151140960. Its totient is φ = 15474668013396.

The previous prime is 23212002020087. The next prime is 23212002020161. The reversal of 23212002020121 is 12102020021232.

23212002020121 is a `hidden beast` number, since 2 + 321 + 20 + 0 + 202 + 0 + 121 = 666.

It is not a de Polignac number, because 23212002020121 - 2¹⁰ = 23212002019097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23212002020094 and 23212002020103.

It is not an unprimeable number, because it can be changed into a prime (23212002020161) 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, 429851889235 + ... + 429851889288.

It is an arithmetic number, because the mean of its divisors is an integer number (4298518892620).

Almost surely, 2^{23212002020121} is an apocalyptic number.

It is an amenable number.

23212002020121 is a deficient number, since it is larger than the sum of its proper divisors (11176149120839).

23212002020121 is an equidigital number, since it uses as much as digits as its factorization.

23212002020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859703778532 (or 859703778526 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23212002020121 its reverse (12102020021232), we get a palindrome (35314022041353).

The spelling of 23212002020121 in words is "twenty-three trillion, two hundred twelve billion, two million, twenty thousand, one hundred twenty-one".