242213223 has 32 divisors (see below), whose sum is σ = 378201600. Its totient is φ = 137827200.

The previous prime is 242213221. The next prime is 242213239. The reversal of 242213223 is 322312242.

It is not a de Polignac number, because 242213223 - 2¹ = 242213221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 242213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242213221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412336 + ... + 412922.

It is an arithmetic number, because the mean of its divisors is an integer number (11818800).

Almost surely, 2^242213223 is an apocalyptic number.

242213223 is a deficient number, since it is larger than the sum of its proper divisors (135988377).

242213223 is an equidigital number, since it uses as much as digits as its factorization.

242213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 998 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 242213223 is about 15563.2009239745. The cubic root of 242213223 is about 623.3509363962.

Adding to 242213223 its reverse (322312242), we get a palindrome (564525465).

The spelling of 242213223 in words is "two hundred forty-two million, two hundred thirteen thousand, two hundred twenty-three".