20420000224004 has 6 divisors (see below), whose sum is σ = 35735000392014. Its totient is φ = 10210000112000.

The previous prime is 20420000224003. The next prime is 20420000224033. The reversal of 20420000224004 is 40042200002402.

It can be written as a sum of positive squares in only one way, i.e., 20088682561600 + 331317662404 = 4482040^2 + 575602^2 .

It is not an unprimeable number, because it can be changed into a prime (20420000224003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552500027997 + ... + 2552500028004.

It is an arithmetic number, because the mean of its divisors is an integer number (5955833398669).

Almost surely, 2^{20420000224004} is an apocalyptic number.

It is an amenable number.

20420000224004 is a deficient number, since it is larger than the sum of its proper divisors (15315000168010).

20420000224004 is a wasteful number, since it uses less digits than its factorization.

20420000224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105000056005 (or 5105000056003 counting only the distinct ones).

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

Adding to 20420000224004 its reverse (40042200002402), we get a palindrome (60462200226406).

The spelling of 20420000224004 in words is "twenty trillion, four hundred twenty billion, two hundred twenty-four thousand, four".