242211331 has 4 divisors (see below), whose sum is σ = 243359464. Its totient is φ = 241063200.

The previous prime is 242211323. The next prime is 242211341. The reversal of 242211331 is 133112242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242211331 - 2³ = 242211323 is a prime.

It is a super-2 number, since 2×242211331² = 117332657729583122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242211299 and 242211308.

It is not an unprimeable number, because it can be changed into a prime (242211311) 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, 573750 + ... + 574171.

It is an arithmetic number, because the mean of its divisors is an integer number (60839866).

Almost surely, 2^242211331 is an apocalyptic number.

242211331 is a deficient number, since it is larger than the sum of its proper divisors (1148133).

242211331 is a wasteful number, since it uses less digits than its factorization.

242211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148132.

The product of its digits is 288, while the sum is 19.

The square root of 242211331 is about 15563.1401394449. The cubic root of 242211331 is about 623.3493133317.

Adding to 242211331 its reverse (133112242), we get a palindrome (375323573).

It can be divided in two parts, 24221 and 1331, that added together give a palindrome (25552).

The spelling of 242211331 in words is "two hundred forty-two million, two hundred eleven thousand, three hundred thirty-one".