22421042523 has 24 divisors (see below), whose sum is σ = 35422433280. Its totient is φ = 13553008560.

The previous prime is 22421042507. The next prime is 22421042543. The reversal of 22421042523 is 32524012422.

22421042523 is a `hidden beast` number, since 2 + 2 + 4 + 210 + 425 + 23 = 666.

It is not a de Polignac number, because 22421042523 - 2⁴ = 22421042507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22421042543) 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, 257743 + ... + 333576.

It is an arithmetic number, because the mean of its divisors is an integer number (1475934720).

Almost surely, 2^22421042523 is an apocalyptic number.

22421042523 is a deficient number, since it is larger than the sum of its proper divisors (13001390757).

22421042523 is a wasteful number, since it uses less digits than its factorization.

22421042523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591719 (or 591716 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22421042523 its reverse (32524012422), we get a palindrome (54945054945).

The spelling of 22421042523 in words is "twenty-two billion, four hundred twenty-one million, forty-two thousand, five hundred twenty-three".