2021213130020 has 96 divisors (see below), whose sum is σ = 5185280088576. Its totient is φ = 646690176000.

The previous prime is 2021213129987. The next prime is 2021213130023. The reversal of 2021213130020 is 200313121202.

It is not an unprimeable number, because it can be changed into a prime (2021213130023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7522931 + ... + 7786970.

It is an arithmetic number, because the mean of its divisors is an integer number (54013334256).

Almost surely, 2^{2021213130020} is an apocalyptic number.

2021213130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021213130020 is an abundant number, since it is smaller than the sum of its proper divisors (3164066958556).

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

2021213130020 is a wasteful number, since it uses less digits than its factorization.

2021213130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309981 (or 15309979 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2021213130020 its reverse (200313121202), we get a palindrome (2221526251222).

The spelling of 2021213130020 in words is "two trillion, twenty-one billion, two hundred thirteen million, one hundred thirty thousand, twenty".