20022002240242 has 16 divisors (see below), whose sum is σ = 30525526877400. Its totient is φ = 9846828541440.

The previous prime is 20022002240239. The next prime is 20022002240291. The reversal of 20022002240242 is 24204220022002.

It can be written as a sum of positive squares in 4 ways, for example, as 13918577639121 + 6103424601121 = 3730761^2 + 2470511^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26599234 + ... + 27341602.

Almost surely, 2^{20022002240242} is an apocalyptic number.

20022002240242 is a deficient number, since it is larger than the sum of its proper divisors (10503524637158).

20022002240242 is a wasteful number, since it uses less digits than its factorization.

20022002240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963501.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20022002240242 its reverse (24204220022002), we get a palindrome (44226222262244).

The spelling of 20022002240242 in words is "twenty trillion, twenty-two billion, two million, two hundred forty thousand, two hundred forty-two".