22022540818 has 8 divisors (see below), whose sum is σ = 33034513212. Its totient is φ = 11011036416.

The previous prime is 22022540807. The next prime is 22022540879. The reversal of 22022540818 is 81804522022.

It can be written as a sum of positive squares in 2 ways, for example, as 19962016369 + 2060524449 = 141287^2 + 45393^2 .

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

It is a super-2 number, since 2×22022540818² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46146 + ... + 214882.

Almost surely, 2^22022540818 is an apocalyptic number.

22022540818 is a deficient number, since it is larger than the sum of its proper divisors (11011972394).

22022540818 is a wasteful number, since it uses less digits than its factorization.

22022540818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233996.

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 22022540818 in words is "twenty-two billion, twenty-two million, five hundred forty thousand, eight hundred eighteen".