242213201 has 2 divisors, whose sum is σ = 242213202. Its totient is φ = 242213200.

The previous prime is 242213189. The next prime is 242213203. The reversal of 242213201 is 102312242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154977601 + 87235600 = 12449^2 + 9340^2 .

It is a cyclic number.

It is not a de Polignac number, because 242213201 - 2¹⁸ = 241951057 is a prime.

Together with 242213203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242213201.

It is not a weakly prime, because it can be changed into another prime (242213203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121106600 + 121106601.

It is an arithmetic number, because the mean of its divisors is an integer number (121106601).

Almost surely, 2^242213201 is an apocalyptic number.

It is an amenable number.

242213201 is a deficient number, since it is larger than the sum of its proper divisors (1).

242213201 is an equidigital number, since it uses as much as digits as its factorization.

242213201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 242213201 is about 15563.2002171790. The cubic root of 242213201 is about 623.3509175234.

Adding to 242213201 its reverse (102312242), we get a palindrome (344525443).

The spelling of 242213201 in words is "two hundred forty-two million, two hundred thirteen thousand, two hundred one".