22003145125 has 48 divisors (see below), whose sum is σ = 30694809600. Its totient is φ = 15723864000.

The previous prime is 22003145123. The next prime is 22003145141. The reversal of 22003145125 is 52154130022.

It is not a de Polignac number, because 22003145125 - 2¹ = 22003145123 is a prime.

It is a super-2 number, since 2×22003145125² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 22003145125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003145123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 638076 + ... + 671674.

It is an arithmetic number, because the mean of its divisors is an integer number (639475200).

Almost surely, 2^22003145125 is an apocalyptic number.

22003145125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22003145125 is a deficient number, since it is larger than the sum of its proper divisors (8691664475).

22003145125 is a wasteful number, since it uses less digits than its factorization.

22003145125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33671 (or 33648 counting only the distinct ones).

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

Adding to 22003145125 its reverse (52154130022), we get a palindrome (74157275147).

The spelling of 22003145125 in words is "twenty-two billion, three million, one hundred forty-five thousand, one hundred twenty-five".