22052547391218 has 64 divisors (see below), whose sum is σ = 45168045552000. Its totient is φ = 7176149950464.

The previous prime is 22052547391213. The next prime is 22052547391267. The reversal of 22052547391218 is 81219374525022.

It is not an unprimeable number, because it can be changed into a prime (22052547391213) 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 31 ways as a sum of consecutive naturals, for example, 21195318 + ... + 22211406.

It is an arithmetic number, because the mean of its divisors is an integer number (705750711750).

Almost surely, 2^{22052547391218} is an apocalyptic number.

22052547391218 is an abundant number, since it is smaller than the sum of its proper divisors (23115498160782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22052547391218 is a wasteful number, since it uses less digits than its factorization.

22052547391218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016699.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 22052547391218 in words is "twenty-two trillion, fifty-two billion, five hundred forty-seven million, three hundred ninety-one thousand, two hundred eighteen".