42231213202 has 4 divisors (see below), whose sum is σ = 63346819806. Its totient is φ = 21115606600.

The previous prime is 42231213173. The next prime is 42231213209. The reversal of 42231213202 is 20231213224.

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

It can be written as a sum of positive squares in only one way, i.e., 33752670961 + 8478542241 = 183719^2 + 92079^2 .

It is not an unprimeable number, because it can be changed into a prime (42231213209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557803299 + ... + 10557803302.

Almost surely, 2^42231213202 is an apocalyptic number.

42231213202 is a deficient number, since it is larger than the sum of its proper divisors (21115606604).

42231213202 is a wasteful number, since it uses less digits than its factorization.

42231213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21115606603.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42231213202 its sum of digits (22), we get a palindrome (42231213224).

Adding to 42231213202 its reverse (20231213224), we get a palindrome (62462426426).

The spelling of 42231213202 in words is "forty-two billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred two".