220221445242 has 32 divisors (see below), whose sum is σ = 451659317760. Its totient is φ = 71541505280.

The previous prime is 220221445183. The next prime is 220221445243. The reversal of 220221445242 is 242544122022.

It is not an unprimeable number, because it can be changed into a prime (220221445243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235242 + ... + 704117.

It is an arithmetic number, because the mean of its divisors is an integer number (14114353680).

Almost surely, 2^220221445242 is an apocalyptic number.

220221445242 is an abundant number, since it is smaller than the sum of its proper divisors (231437872518).

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

220221445242 is a wasteful number, since it uses less digits than its factorization.

220221445242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940358.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 220221445242 its reverse (242544122022), we get a palindrome (462765567264).

The spelling of 220221445242 in words is "two hundred twenty billion, two hundred twenty-one million, four hundred forty-five thousand, two hundred forty-two".