22200220178243 has 2 divisors, whose sum is σ = 22200220178244. Its totient is φ = 22200220178242.

The previous prime is 22200220178239. The next prime is 22200220178263. The reversal of 22200220178243 is 34287102200222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22200220178243 - 2² = 22200220178239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22200220178263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100110089121 + 11100110089122.

It is an arithmetic number, because the mean of its divisors is an integer number (11100110089122).

Almost surely, 2^{22200220178243} is an apocalyptic number.

22200220178243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200220178243 is an equidigital number, since it uses as much as digits as its factorization.

22200220178243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 35.

Adding to 22200220178243 its reverse (34287102200222), we get a palindrome (56487322378465).

The spelling of 22200220178243 in words is "twenty-two trillion, two hundred billion, two hundred twenty million, one hundred seventy-eight thousand, two hundred forty-three".