20424022004002 has 16 divisors (see below), whose sum is σ = 30722378333400. Its totient is φ = 10183245721600.

The previous prime is 20424022003993. The next prime is 20424022004059. The reversal of 20424022004002 is 20040022042402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20343518723641 + 80503280361 = 4510379^2 + 283731^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 1644727 + ... + 6599482.

Almost surely, 2^{20424022004002} is an apocalyptic number.

20424022004002 is a deficient number, since it is larger than the sum of its proper divisors (10298356329398).

20424022004002 is a wasteful number, since it uses less digits than its factorization.

20424022004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247701.

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

Adding to 20424022004002 its reverse (20040022042402), we get a palindrome (40464044046404).

It can be divided in two parts, 2042402 and 2004002, that added together give a palindrome (4046404).

The spelling of 20424022004002 in words is "twenty trillion, four hundred twenty-four billion, twenty-two million, four thousand, two".