2000210111221 has 4 divisors (see below), whose sum is σ = 2285954412832. Its totient is φ = 1714465809612.

The previous prime is 2000210111213. The next prime is 2000210111231. The reversal of 2000210111221 is 1221110120002.

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 2000210111221 - 2³ = 2000210111213 is a prime.

It is a super-2 number, since 2×2000210111221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000210111231) 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, 142872150795 + ... + 142872150808.

It is an arithmetic number, because the mean of its divisors is an integer number (571488603208).

Almost surely, 2^{2000210111221} is an apocalyptic number.

It is an amenable number.

2000210111221 is a deficient number, since it is larger than the sum of its proper divisors (285744301611).

2000210111221 is an equidigital number, since it uses as much as digits as its factorization.

2000210111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285744301610.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2000210111221 its reverse (1221110120002), we get a palindrome (3221320231223).

The spelling of 2000210111221 in words is "two trillion, two hundred ten million, one hundred eleven thousand, two hundred twenty-one".