2101220101211 has 32 divisors (see below), whose sum is σ = 2761170508800. Its totient is φ = 1551027703680.

The previous prime is 2101220101199. The next prime is 2101220101229. The reversal of 2101220101211 is 1121010221012.

It is not a de Polignac number, because 2101220101211 - 2⁶ = 2101220101147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101220101241) 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 31 ways as a sum of consecutive naturals, for example, 8758871 + ... + 8995568.

It is an arithmetic number, because the mean of its divisors is an integer number (86286578400).

Almost surely, 2^{2101220101211} is an apocalyptic number.

2101220101211 is a deficient number, since it is larger than the sum of its proper divisors (659950407589).

2101220101211 is a wasteful number, since it uses less digits than its factorization.

2101220101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17754539.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101220101211 its reverse (1121010221012), we get a palindrome (3222230322223).

The spelling of 2101220101211 in words is "two trillion, one hundred one billion, two hundred twenty million, one hundred one thousand, two hundred eleven".