23330011222221 has 24 divisors (see below), whose sum is σ = 34530172952352. Its totient is φ = 13999406652000.

The previous prime is 23330011222211. The next prime is 23330011222241. The reversal of 23330011222221 is 12222211003332.

It is not a de Polignac number, because 23330011222221 - 2¹⁸ = 23330010960077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23330011222191 and 23330011222200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23330011222201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318131671 + ... + 318204996.

It is an arithmetic number, because the mean of its divisors is an integer number (1438757206348).

Almost surely, 2^{23330011222221} is an apocalyptic number.

It is an amenable number.

23330011222221 is a deficient number, since it is larger than the sum of its proper divisors (11200161730131).

23330011222221 is a wasteful number, since it uses less digits than its factorization.

23330011222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636336793 (or 636336782 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23330011222221 its reverse (12222211003332), we get a palindrome (35552222225553).

The spelling of 23330011222221 in words is "twenty-three trillion, three hundred thirty billion, eleven million, two hundred twenty-two thousand, two hundred twenty-one".