22145135212504 has 16 divisors (see below), whose sum is σ = 41754095724600. Its totient is φ = 11010709685952.

The previous prime is 22145135212471. The next prime is 22145135212507. The reversal of 22145135212504 is 40521253154122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145135212507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7732238517 + ... + 7732241380.

Almost surely, 2^{22145135212504} is an apocalyptic number.

It is an amenable number.

22145135212504 is a deficient number, since it is larger than the sum of its proper divisors (19608960512096).

22145135212504 is a wasteful number, since it uses less digits than its factorization.

22145135212504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15464480082 (or 15464480078 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 22145135212504 its reverse (40521253154122), we get a palindrome (62666388366626).

The spelling of 22145135212504 in words is "twenty-two trillion, one hundred forty-five billion, one hundred thirty-five million, two hundred twelve thousand, five hundred four".