23221043121 has 8 divisors (see below), whose sum is σ = 32782649184. Its totient is φ = 14570066240.

The previous prime is 23221043119. The next prime is 23221043147. The reversal of 23221043121 is 12134012232.

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

It is not a de Polignac number, because 23221043121 - 2¹ = 23221043119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23221043161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227657235 + ... + 227657336.

It is an arithmetic number, because the mean of its divisors is an integer number (4097831148).

Almost surely, 2^23221043121 is an apocalyptic number.

It is an amenable number.

23221043121 is a deficient number, since it is larger than the sum of its proper divisors (9561606063).

23221043121 is a wasteful number, since it uses less digits than its factorization.

23221043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455314591.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23221043121 its reverse (12134012232), we get a palindrome (35355055353).

The spelling of 23221043121 in words is "twenty-three billion, two hundred twenty-one million, forty-three thousand, one hundred twenty-one".