23101444212221 has 8 divisors (see below), whose sum is σ = 23301904724280. Its totient is φ = 22901849620992.

The previous prime is 23101444212199. The next prime is 23101444212233. The reversal of 23101444212221 is 12221244410132.

It can be written as a sum of positive squares in 4 ways, for example, as 10718329540996 + 12383114671225 = 3273886^2 + 3518965^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23101444212221 - 2⁴² = 18703397701117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101444212271) 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, 216426620 + ... + 216533333.

It is an arithmetic number, because the mean of its divisors is an integer number (2912738090535).

Almost surely, 2^{23101444212221} is an apocalyptic number.

It is an amenable number.

23101444212221 is a deficient number, since it is larger than the sum of its proper divisors (200460512059).

23101444212221 is a wasteful number, since it uses less digits than its factorization.

23101444212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432960415.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 23101444212221 its reverse (12221244410132), we get a palindrome (35322688622353).

The spelling of 23101444212221 in words is "twenty-three trillion, one hundred one billion, four hundred forty-four million, two hundred twelve thousand, two hundred twenty-one".