2000000221021 has 16 divisors (see below), whose sum is σ = 2233628210880. Its totient is φ = 1775047720320.

The previous prime is 2000000221003. The next prime is 2000000221067. The reversal of 2000000221021 is 1201220000002.

It is a cyclic number.

It is not a de Polignac number, because 2000000221021 - 2¹⁹ = 1999999696733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000000220989 and 2000000221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000000227021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23950 + ... + 2000143.

It is an arithmetic number, because the mean of its divisors is an integer number (139601763180).

Almost surely, 2^{2000000221021} is an apocalyptic number.

It is an amenable number.

2000000221021 is a deficient number, since it is larger than the sum of its proper divisors (233627989859).

2000000221021 is a wasteful number, since it uses less digits than its factorization.

2000000221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026236.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2000000221021 its reverse (1201220000002), we get a palindrome (3201220221023).

The spelling of 2000000221021 in words is "two trillion, two hundred twenty-one thousand, twenty-one".