220203221242 has 8 divisors (see below), whose sum is σ = 331067661876. Its totient is φ = 109847333952.

The previous prime is 220203221239. The next prime is 220203221243. The reversal of 220203221242 is 242122302022.

It can be written as a sum of positive squares in 2 ways, for example, as 199282780921 + 20920440321 = 446411^2 + 144639^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220203221243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127137253 + ... + 127138984.

Almost surely, 2^220203221242 is an apocalyptic number.

220203221242 is a deficient number, since it is larger than the sum of its proper divisors (110864440634).

220203221242 is a wasteful number, since it uses less digits than its factorization.

220203221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254276672.

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

Adding to 220203221242 its reverse (242122302022), we get a palindrome (462325523264).

The spelling of 220203221242 in words is "two hundred twenty billion, two hundred three million, two hundred twenty-one thousand, two hundred forty-two".