2102221121211 has 12 divisors (see below), whose sum is σ = 3037031228088. Its totient is φ = 1401254774304.

The previous prime is 2102221121197. The next prime is 2102221121333. The reversal of 2102221121211 is 1121211222012.

2102221121211 is a `hidden beast` number, since 210 + 2 + 221 + 1 + 21 + 211 = 666.

It is not a de Polignac number, because 2102221121211 - 2¹³ = 2102221113019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102221821211) 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 11 ways as a sum of consecutive naturals, for example, 18772170 + ... + 18883823.

It is an arithmetic number, because the mean of its divisors is an integer number (253085935674).

Almost surely, 2^{2102221121211} is an apocalyptic number.

2102221121211 is a deficient number, since it is larger than the sum of its proper divisors (934810106877).

2102221121211 is a wasteful number, since it uses less digits than its factorization.

2102221121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37662202 (or 37662199 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2102221121211 its reverse (1121211222012), we get a palindrome (3223432343223).

The spelling of 2102221121211 in words is "two trillion, one hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".