2021121430004 has 12 divisors (see below), whose sum is σ = 3651058067328. Its totient is φ = 977961982200.

The previous prime is 2021121430001. The next prime is 2021121430037. The reversal of 2021121430004 is 4000341211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021121430001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8149683062 + ... + 8149683309.

It is an arithmetic number, because the mean of its divisors is an integer number (304254838944).

Almost surely, 2^{2021121430004} is an apocalyptic number.

It is an amenable number.

2021121430004 is a deficient number, since it is larger than the sum of its proper divisors (1629936637324).

2021121430004 is a wasteful number, since it uses less digits than its factorization.

2021121430004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16299366406 (or 16299366404 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2021121430004 its reverse (4000341211202), we get a palindrome (6021462641206).

The spelling of 2021121430004 in words is "two trillion, twenty-one billion, one hundred twenty-one million, four hundred thirty thousand, four".