2000000011221 has 24 divisors (see below), whose sum is σ = 3014651365440. Its totient is φ = 1275295228416.

The previous prime is 2000000011199. The next prime is 2000000011259. The reversal of 2000000011221 is 1221100000002.

It is not a de Polignac number, because 2000000011221 - 2¹¹ = 2000000009173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000000010221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3849570 + ... + 4338108.

It is an arithmetic number, because the mean of its divisors is an integer number (125610473560).

Almost surely, 2^{2000000011221} is an apocalyptic number.

It is an amenable number.

2000000011221 is a deficient number, since it is larger than the sum of its proper divisors (1014651354219).

2000000011221 is a wasteful number, since it uses less digits than its factorization.

2000000011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508345 (or 508342 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2000000011221 its reverse (1221100000002), we get a palindrome (3221100011223).

The spelling of 2000000011221 in words is "two trillion, eleven thousand, two hundred twenty-one".