242120444402 has 4 divisors (see below), whose sum is σ = 363180666606. Its totient is φ = 121060222200.

The previous prime is 242120444323. The next prime is 242120444431. The reversal of 242120444402 is 204444021242.

It is a happy number.

242120444402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204444021242 = 2 ⋅102222010621.

It can be written as a sum of positive squares in only one way, i.e., 227528046001 + 14592398401 = 476999^2 + 120799^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60530111099 + ... + 60530111102.

Almost surely, 2^242120444402 is an apocalyptic number.

242120444402 is a deficient number, since it is larger than the sum of its proper divisors (121060222204).

242120444402 is a wasteful number, since it uses less digits than its factorization.

242120444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121060222203.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 242120444402 its reverse (204444021242), we get a palindrome (446564465644).

The spelling of 242120444402 in words is "two hundred forty-two billion, one hundred twenty million, four hundred forty-four thousand, four hundred two".