2021404412100 has 72 divisors (see below), whose sum is σ = 6156417665440. Its totient is φ = 510670586880.

The previous prime is 2021404412077. The next prime is 2021404412201. The reversal of 2021404412100 is 12144041202.

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 23 ways as a sum of consecutive naturals, for example, 177310477 + ... + 177321876.

Almost surely, 2^{2021404412100} is an apocalyptic number.

2021404412100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021404412100 is an abundant number, since it is smaller than the sum of its proper divisors (4135013253340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021404412100 is a wasteful number, since it uses less digits than its factorization.

2021404412100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354632389 (or 354632382 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2021404412100 its reverse (12144041202), we get a palindrome (2033548453302).

The spelling of 2021404412100 in words is "two trillion, twenty-one billion, four hundred four million, four hundred twelve thousand, one hundred".