420121200404 has 12 divisors (see below), whose sum is σ = 767177844384. Its totient is φ = 200927530584.

The previous prime is 420121200403. The next prime is 420121200409. The reversal of 420121200404 is 404002121024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420121200403) 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, 2283267302 + ... + 2283267485.

It is an arithmetic number, because the mean of its divisors is an integer number (63931487032).

Almost surely, 2^420121200404 is an apocalyptic number.

It is an amenable number.

420121200404 is a deficient number, since it is larger than the sum of its proper divisors (347056643980).

420121200404 is a wasteful number, since it uses less digits than its factorization.

420121200404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566534814 (or 4566534812 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 420121200404 its reverse (404002121024), we get a palindrome (824123321428).

The spelling of 420121200404 in words is "four hundred twenty billion, one hundred twenty-one million, two hundred thousand, four hundred four".