22151241533 has 4 divisors (see below), whose sum is σ = 22161145980. Its totient is φ = 22141337088.

The previous prime is 22151241529. The next prime is 22151241547. The reversal of 22151241533 is 33514215122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19942523524 + 2208718009 = 141218^2 + 46997^2 .

It is a cyclic number.

It is not a de Polignac number, because 22151241533 - 2² = 22151241529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22151241496 and 22151241505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151241583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948868 + ... + 4953341.

It is an arithmetic number, because the mean of its divisors is an integer number (5540286495).

Almost surely, 2^22151241533 is an apocalyptic number.

It is an amenable number.

22151241533 is a deficient number, since it is larger than the sum of its proper divisors (9904447).

22151241533 is an equidigital number, since it uses as much as digits as its factorization.

22151241533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904446.

The product of its digits is 7200, while the sum is 29.

Adding to 22151241533 its reverse (33514215122), we get a palindrome (55665456655).

The spelling of 22151241533 in words is "twenty-two billion, one hundred fifty-one million, two hundred forty-one thousand, five hundred thirty-three".