22195690243 has 4 divisors (see below), whose sum is σ = 22204400400. Its totient is φ = 22186980088.

The previous prime is 22195690213. The next prime is 22195690271. The reversal of 22195690243 is 34209659122.

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

It is a cyclic number.

It is not a de Polignac number, because 22195690243 - 2²¹ = 22193593091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22195690243.

It is not an unprimeable number, because it can be changed into a prime (22195690213) 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 3 ways as a sum of consecutive naturals, for example, 4351255 + ... + 4356352.

It is an arithmetic number, because the mean of its divisors is an integer number (5551100100).

Almost surely, 2^22195690243 is an apocalyptic number.

22195690243 is a deficient number, since it is larger than the sum of its proper divisors (8710157).

22195690243 is an equidigital number, since it uses as much as digits as its factorization.

22195690243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710156.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 22195690243 in words is "twenty-two billion, one hundred ninety-five million, six hundred ninety thousand, two hundred forty-three".