22101015525 has 24 divisors (see below), whose sum is σ = 36555428160. Its totient is φ = 11782343040.

The previous prime is 22101015523. The next prime is 22101015577. The reversal of 22101015525 is 52551010122.

It is not a de Polignac number, because 22101015525 - 2¹ = 22101015523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22101015495 and 22101015504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101015523) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 125896 + ... + 245054.

It is an arithmetic number, because the mean of its divisors is an integer number (1523142840).

Almost surely, 2^22101015525 is an apocalyptic number.

22101015525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22101015525 is a deficient number, since it is larger than the sum of its proper divisors (14454412635).

22101015525 is a wasteful number, since it uses less digits than its factorization.

22101015525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121645 (or 121640 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 22101015525 its reverse (52551010122), we get a palindrome (74652025647).

The spelling of 22101015525 in words is "twenty-two billion, one hundred one million, fifteen thousand, five hundred twenty-five".