22145111131515 has 16 divisors (see below), whose sum is σ = 35610228960000. Its totient is φ = 11751375553632.

The previous prime is 22145111131483. The next prime is 22145111131519. The reversal of 22145111131515 is 51513111154122.

It is not a de Polignac number, because 22145111131515 - 2⁵ = 22145111131483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22145111131519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3709395865 + ... + 3709401834.

It is an arithmetic number, because the mean of its divisors is an integer number (2225639310000).

Almost surely, 2^{22145111131515} is an apocalyptic number.

22145111131515 is a deficient number, since it is larger than the sum of its proper divisors (13465117828485).

22145111131515 is a wasteful number, since it uses less digits than its factorization.

22145111131515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7418797906.

The product of its digits is 6000, while the sum is 33.

Adding to 22145111131515 its reverse (51513111154122), we get a palindrome (73658222285637).

The spelling of 22145111131515 in words is "twenty-two trillion, one hundred forty-five billion, one hundred eleven million, one hundred thirty-one thousand, five hundred fifteen".