2102000002221 has 24 divisors (see below), whose sum is σ = 3274237422144. Its totient is φ = 1195987719360.

The previous prime is 2102000002211. The next prime is 2102000002231. The reversal of 2102000002221 is 1222000002012.

It is an interprime number because it is at equal distance from previous prime (2102000002211) and next prime (2102000002231).

It is not a de Polignac number, because 2102000002221 - 2⁷ = 2102000002093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102000002197 and 2102000002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102000002211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30650985 + ... + 30719486.

It is an arithmetic number, because the mean of its divisors is an integer number (136426559256).

Almost surely, 2^{2102000002221} is an apocalyptic number.

2102000002221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102000002221 is a deficient number, since it is larger than the sum of its proper divisors (1172237419923).

2102000002221 is a wasteful number, since it uses less digits than its factorization.

2102000002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61370721 (or 61370714 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2102000002221 its reverse (1222000002012), we get a palindrome (3324000004233).

The spelling of 2102000002221 in words is "two trillion, one hundred two billion, two thousand, two hundred twenty-one".