23333212130221 has 16 divisors (see below), whose sum is σ = 28424645107200. Its totient is φ = 18697099864320.

The previous prime is 23333212130219. The next prime is 23333212130231. The reversal of 23333212130221 is 12203121233332.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23333212130221 - 2¹ = 23333212130219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23333212130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23333212130201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657960165 + ... + 657995626.

It is an arithmetic number, because the mean of its divisors is an integer number (1776540319200).

Almost surely, 2^{23333212130221} is an apocalyptic number.

It is an amenable number.

23333212130221 is a deficient number, since it is larger than the sum of its proper divisors (5091432976979).

23333212130221 is a wasteful number, since it uses less digits than its factorization.

23333212130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315955964.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 23333212130221 its reverse (12203121233332), we get a palindrome (35536333363553).

The spelling of 23333212130221 in words is "twenty-three trillion, three hundred thirty-three billion, two hundred twelve million, one hundred thirty thousand, two hundred twenty-one".