23514421221 has 24 divisors (see below), whose sum is σ = 34262452224. Its totient is φ = 15539338080.

The previous prime is 23514421213. The next prime is 23514421253. The reversal of 23514421221 is 12212441532.

23514421221 is a `hidden beast` number, since 2 + 3 + 5 + 14 + 421 + 221 = 666.

It is not a de Polignac number, because 23514421221 - 2³ = 23514421213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23514421291) 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, 1405576 + ... + 1422206.

It is an arithmetic number, because the mean of its divisors is an integer number (1427602176).

Almost surely, 2^23514421221 is an apocalyptic number.

It is an amenable number.

23514421221 is a deficient number, since it is larger than the sum of its proper divisors (10748031003).

23514421221 is a wasteful number, since it uses less digits than its factorization.

23514421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18001 (or 17998 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 23514421221 its reverse (12212441532), we get a palindrome (35726862753).

The spelling of 23514421221 in words is "twenty-three billion, five hundred fourteen million, four hundred twenty-one thousand, two hundred twenty-one".