20442222002 has 8 divisors (see below), whose sum is σ = 30667146156. Its totient is φ = 10219839952.

The previous prime is 20442221983. The next prime is 20442222007. The reversal of 20442222002 is 20022224402.

It can be written as a sum of positive squares in 2 ways, for example, as 18036221401 + 2406000601 = 134299^2 + 49051^2 .

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 (20442222007) 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 in 3 ways as a sum of consecutive naturals, for example, 615293 + ... + 647664.

Almost surely, 2^20442222002 is an apocalyptic number.

20442222002 is a deficient number, since it is larger than the sum of its proper divisors (10224924154).

20442222002 is a wasteful number, since it uses less digits than its factorization.

20442222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271052.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20442222002 its reverse (20022224402), we get a palindrome (40464446404).

The spelling of 20442222002 in words is "twenty billion, four hundred forty-two million, two hundred twenty-two thousand, two".