22205421505 has 16 divisors (see below), whose sum is σ = 29698894080. Its totient is φ = 15839407872.

The previous prime is 22205421503. The next prime is 22205421583. The reversal of 22205421505 is 50512450222.

It is a cyclic number.

It is not a de Polignac number, because 22205421505 - 2¹ = 22205421503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22205421503) 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 15 ways as a sum of consecutive naturals, for example, 6873129 + ... + 6876358.

It is an arithmetic number, because the mean of its divisors is an integer number (1856180880).

Almost surely, 2^22205421505 is an apocalyptic number.

It is an amenable number.

22205421505 is a deficient number, since it is larger than the sum of its proper divisors (7493472575).

22205421505 is a wasteful number, since it uses less digits than its factorization.

22205421505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13749528.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 22205421505 its reverse (50512450222), we get a palindrome (72717871727).

The spelling of 22205421505 in words is "twenty-two billion, two hundred five million, four hundred twenty-one thousand, five hundred five".