23223201123221 has 4 divisors (see below), whose sum is σ = 25334401225344. Its totient is φ = 21112001021100.

The previous prime is 23223201123191. The next prime is 23223201123233. The reversal of 23223201123221 is 12232110232232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23223201123221 - 2²² = 23223196928917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223201125221) 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 3 ways as a sum of consecutive naturals, for example, 1055600051045 + ... + 1055600051066.

It is an arithmetic number, because the mean of its divisors is an integer number (6333600306336).

Almost surely, 2^{23223201123221} is an apocalyptic number.

It is an amenable number.

23223201123221 is a deficient number, since it is larger than the sum of its proper divisors (2111200102123).

23223201123221 is a wasteful number, since it uses less digits than its factorization.

23223201123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111200102122.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 23223201123221 its reverse (12232110232232), we get a palindrome (35455311355453).

The spelling of 23223201123221 in words is "twenty-three trillion, two hundred twenty-three billion, two hundred one million, one hundred twenty-three thousand, two hundred twenty-one".