22245405531 has 8 divisors (see below), whose sum is σ = 29661337680. Its totient is φ = 14829871872.

The previous prime is 22245405491. The next prime is 22245405601. The reversal of 22245405531 is 13550454222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22245405531 - 2²² = 22241211227 is a prime.

It is a super-2 number, since 2×22245405531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22245405492 and 22245405501.

It is not an unprimeable number, because it can be changed into a prime (22245405431) 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 7 ways as a sum of consecutive naturals, for example, 73731 + ... + 223443.

It is an arithmetic number, because the mean of its divisors is an integer number (3707667210).

Almost surely, 2^22245405531 is an apocalyptic number.

22245405531 is a deficient number, since it is larger than the sum of its proper divisors (7415932149).

22245405531 is a wasteful number, since it uses less digits than its factorization.

22245405531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199245.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 22245405531 its reverse (13550454222), we get a palindrome (35795859753).

The spelling of 22245405531 in words is "twenty-two billion, two hundred forty-five million, four hundred five thousand, five hundred thirty-one".