2000121022221 has 8 divisors (see below), whose sum is σ = 3047803462464. Its totient is φ = 1142926298400.

The previous prime is 2000121022201. The next prime is 2000121022303. The reversal of 2000121022221 is 1222201210002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2000121022221 - 2¹⁷ = 2000120891149 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2000121022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000121022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47621929080 + ... + 47621929121.

It is an arithmetic number, because the mean of its divisors is an integer number (380975432808).

Almost surely, 2^{2000121022221} is an apocalyptic number.

2000121022221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2000121022221 is a deficient number, since it is larger than the sum of its proper divisors (1047682440243).

2000121022221 is an equidigital number, since it uses as much as digits as its factorization.

2000121022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95243858211.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2000121022221 its reverse (1222201210002), we get a palindrome (3222322232223).

The spelling of 2000121022221 in words is "two trillion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-one".