220042102243 has 2 divisors, whose sum is σ = 220042102244. Its totient is φ = 220042102242.

The previous prime is 220042102171. The next prime is 220042102249. The reversal of 220042102243 is 342201240022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220042102243 is a prime.

It is not a weakly prime, because it can be changed into another prime (220042102249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110021051121 + 110021051122.

It is an arithmetic number, because the mean of its divisors is an integer number (110021051122).

Almost surely, 2^220042102243 is an apocalyptic number.

220042102243 is a deficient number, since it is larger than the sum of its proper divisors (1).

220042102243 is an equidigital number, since it uses as much as digits as its factorization.

220042102243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 220042102243 its reverse (342201240022), we get a palindrome (562243342265).

The spelling of 220042102243 in words is "two hundred twenty billion, forty-two million, one hundred two thousand, two hundred forty-three".