2021420341100 has 36 divisors (see below), whose sum is σ = 4386585001008. Its totient is φ = 808549176000.

The previous prime is 2021420341099. The next prime is 2021420341117. The reversal of 2021420341100 is 11430241202.

It is a super-2 number, since 2×2021420341100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4524785 + ... + 4951415.

Almost surely, 2^{2021420341100} is an apocalyptic number.

2021420341100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021420341100 is an abundant number, since it is smaller than the sum of its proper divisors (2365164659908).

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

2021420341100 is a wasteful number, since it uses less digits than its factorization.

2021420341100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474026 (or 474019 counting only the distinct ones).

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

Adding to 2021420341100 its reverse (11430241202), we get a palindrome (2032850582302).

The spelling of 2021420341100 in words is "two trillion, twenty-one billion, four hundred twenty million, three hundred forty-one thousand, one hundred".