22125021523 has 8 divisors (see below), whose sum is σ = 25406723520. Its totient is φ = 19055042280.

The previous prime is 22125021521. The next prime is 22125021577. The reversal of 22125021523 is 32512052122.

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 22125021523 - 2¹ = 22125021521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125021521) 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, 52930465 + ... + 52930882.

It is an arithmetic number, because the mean of its divisors is an integer number (3175840440).

Almost surely, 2^22125021523 is an apocalyptic number.

22125021523 is a deficient number, since it is larger than the sum of its proper divisors (3281701997).

22125021523 is a wasteful number, since it uses less digits than its factorization.

22125021523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105861377.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22125021523 its reverse (32512052122), we get a palindrome (54637073645).

The spelling of 22125021523 in words is "twenty-two billion, one hundred twenty-five million, twenty-one thousand, five hundred twenty-three".