402212322242 has 8 divisors (see below), whose sum is σ = 609538261836. Its totient is φ = 199032901632.

The previous prime is 402212322241. The next prime is 402212322257. The reversal of 402212322242 is 242223212204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 343889589241 + 58322733001 = 586421^2 + 241501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (402212322241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036629503 + ... + 1036629890.

Almost surely, 2^402212322242 is an apocalyptic number.

402212322242 is a deficient number, since it is larger than the sum of its proper divisors (207325939594).

402212322242 is a wasteful number, since it uses less digits than its factorization.

402212322242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073259492.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 402212322242 its reverse (242223212204), we get a palindrome (644435534446).

The spelling of 402212322242 in words is "four hundred two billion, two hundred twelve million, three hundred twenty-two thousand, two hundred forty-two".