242220203 has 4 divisors (see below), whose sum is σ = 246191088. Its totient is φ = 238249320.

The previous prime is 242220197. The next prime is 242220221. The reversal of 242220203 is 302022242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302022242 = 2 ⋅151011121.

It is a cyclic number.

It is not a de Polignac number, because 242220203 - 2⁸ = 242219947 is a prime.

It is a super-3 number, since 3×242220203³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242220283) 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, 1985351 + ... + 1985472.

It is an arithmetic number, because the mean of its divisors is an integer number (61547772).

Almost surely, 2^242220203 is an apocalyptic number.

242220203 is a deficient number, since it is larger than the sum of its proper divisors (3970885).

242220203 is an equidigital number, since it uses as much as digits as its factorization.

242220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970884.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 242220203 is about 15563.4251692871. The cubic root of 242220203 is about 623.3569241614.

Adding to 242220203 its reverse (302022242), we get a palindrome (544242445).

The spelling of 242220203 in words is "two hundred forty-two million, two hundred twenty thousand, two hundred three".