2000021120221 has 4 divisors (see below), whose sum is σ = 2000418033600. Its totient is φ = 1999624206844.

The previous prime is 2000021120189. The next prime is 2000021120233. The reversal of 2000021120221 is 1220211200002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000021120221 - 2⁵ = 2000021120189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000021121221) 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, 198449131 + ... + 198459208.

It is an arithmetic number, because the mean of its divisors is an integer number (500104508400).

Almost surely, 2^{2000021120221} is an apocalyptic number.

It is an amenable number.

2000021120221 is a deficient number, since it is larger than the sum of its proper divisors (396913379).

2000021120221 is an equidigital number, since it uses as much as digits as its factorization.

2000021120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396913378.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2000021120221 its reverse (1220211200002), we get a palindrome (3220232320223).

The spelling of 2000021120221 in words is "two trillion, twenty-one million, one hundred twenty thousand, two hundred twenty-one".