22120153523 has 8 divisors (see below), whose sum is σ = 24032516928. Its totient is φ = 20237906304.

The previous prime is 22120153493. The next prime is 22120153529. The reversal of 22120153523 is 32535102122.

It is a happy number.

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 22120153523 - 2¹² = 22120149427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120153492 and 22120153501.

It is not an unprimeable number, because it can be changed into a prime (22120153529) 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, 7527515 + ... + 7530452.

It is an arithmetic number, because the mean of its divisors is an integer number (3004064616).

Almost surely, 2^22120153523 is an apocalyptic number.

22120153523 is a deficient number, since it is larger than the sum of its proper divisors (1912363405).

22120153523 is a wasteful number, since it uses less digits than its factorization.

22120153523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15058093.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 22120153523 its reverse (32535102122), we get a palindrome (54655255645).

The spelling of 22120153523 in words is "twenty-two billion, one hundred twenty million, one hundred fifty-three thousand, five hundred twenty-three".