22145214525 has 48 divisors (see below), whose sum is σ = 42094639104. Its totient is φ = 10062866880.

The previous prime is 22145214517. The next prime is 22145214551. The reversal of 22145214525 is 52541254122.

It is not a de Polignac number, because 22145214525 - 2³ = 22145214517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38617 + ... + 213966.

It is an arithmetic number, because the mean of its divisors is an integer number (876971648).

Almost surely, 2^22145214525 is an apocalyptic number.

22145214525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22145214525 is a deficient number, since it is larger than the sum of its proper divisors (19949424579).

22145214525 is a wasteful number, since it uses less digits than its factorization.

22145214525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252770 (or 252765 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

Adding to 22145214525 its reverse (52541254122), we get a palindrome (74686468647).

The spelling of 22145214525 in words is "twenty-two billion, one hundred forty-five million, two hundred fourteen thousand, five hundred twenty-five".