402233021342242 has 8 divisors (see below), whose sum is σ = 609569630281836. Its totient is φ = 199043144581632.

The previous prime is 402233021342239. The next prime is 402233021342249. The reversal of 402233021342242 is 242243120332204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 400923372271041 + 1309649071201 = 20023071^2 + 1144399^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 402233021342198 and 402233021342207.

It is not an unprimeable number, because it can be changed into a prime (402233021342249) 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, 1036683044503 + ... + 1036683044890.

Almost surely, 2^{402233021342242} is an apocalyptic number.

402233021342242 is a deficient number, since it is larger than the sum of its proper divisors (207336608939594).

402233021342242 is a wasteful number, since it uses less digits than its factorization.

402233021342242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073366089492.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 402233021342242 its reverse (242243120332204), we get a palindrome (644476141674446).

The spelling of 402233021342242 in words is "four hundred two trillion, two hundred thirty-three billion, twenty-one million, three hundred forty-two thousand, two hundred forty-two".