242031222 has 24 divisors (see below), whose sum is σ = 526265064. Its totient is φ = 80390304.

The previous prime is 242031211. The next prime is 242031287. The reversal of 242031222 is 222130242.

It is a super-2 number, since 2×242031222² = 117158224845626568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 242031195 and 242031204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18663 + ... + 28850.

It is an arithmetic number, because the mean of its divisors is an integer number (21927711).

Almost surely, 2^242031222 is an apocalyptic number.

242031222 is an abundant number, since it is smaller than the sum of its proper divisors (284233842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242031222 is a wasteful number, since it uses less digits than its factorization.

242031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47804 (or 47801 counting only the distinct ones).

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

The square root of 242031222 is about 15557.3526668261. The cubic root of 242031222 is about 623.1947669406.

Adding to 242031222 its reverse (222130242), we get a palindrome (464161464).

It can be divided in two parts, 24203 and 1222, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 242031222 in words is "two hundred forty-two million, thirty-one thousand, two hundred twenty-two".