2102221220211 has 16 divisors (see below), whose sum is σ = 3559316352000. Its totient is φ = 1201269268584.

The previous prime is 2102221220159. The next prime is 2102221220213. The reversal of 2102221220211 is 1120221222012.

It is a happy number.

2102221220211 is a `hidden beast` number, since 2 + 10 + 2 + 221 + 220 + 211 = 666.

It is not a de Polignac number, because 2102221220211 - 2¹⁰ = 2102221219187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102221220213) 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, 5561431611 + ... + 5561431988.

It is an arithmetic number, because the mean of its divisors is an integer number (222457272000).

Almost surely, 2^{2102221220211} is an apocalyptic number.

2102221220211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2102221220211 is a deficient number, since it is larger than the sum of its proper divisors (1457095131789).

2102221220211 is a wasteful number, since it uses less digits than its factorization.

2102221220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122863615 (or 11122863609 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2102221220211 its reverse (1120221222012), we get a palindrome (3222442442223).

The spelling of 2102221220211 in words is "two trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred eleven".