242232021 has 12 divisors (see below), whose sum is σ = 365103648. Its totient is φ = 154466664.

The previous prime is 242232017. The next prime is 242232061. The reversal of 242232021 is 120232242.

242232021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242232021 - 2² = 242232017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242231985 and 242232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242232061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584895 + ... + 585308.

It is an arithmetic number, because the mean of its divisors is an integer number (30425304).

Almost surely, 2^242232021 is an apocalyptic number.

It is an amenable number.

242232021 is a deficient number, since it is larger than the sum of its proper divisors (122871627).

242232021 is a wasteful number, since it uses less digits than its factorization.

242232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170232 (or 1170229 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 242232021 is about 15563.8048368643. The cubic root of 242232021 is about 623.3670619234.

Adding to 242232021 its reverse (120232242), we get a palindrome (362464263).

It can be divided in two parts, 24223 and 2021, that added together give a square (26244 = 162²).

The spelling of 242232021 in words is "two hundred forty-two million, two hundred thirty-two thousand, twenty-one".