2101220211 has 8 divisors (see below), whose sum is σ = 2861236224. Its totient is φ = 1371008840.

The previous prime is 2101220183. The next prime is 2101220227. The reversal of 2101220211 is 1120221012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101220211 - 2¹⁰ = 2101219187 is a prime.

It is a super-2 number, since 2×2101220211² = 8830252750229769042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101220411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7450995 + ... + 7451276.

It is an arithmetic number, because the mean of its divisors is an integer number (357654528).

Almost surely, 2^2101220211 is an apocalyptic number.

2101220211 is a deficient number, since it is larger than the sum of its proper divisors (760016013).

2101220211 is a wasteful number, since it uses less digits than its factorization.

2101220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902321.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101220211 is about 45839.0686096478. The cubic root of 2101220211 is about 1280.8271450247.

Adding to 2101220211 its reverse (1120221012), we get a palindrome (3221441223).

The spelling of 2101220211 in words is "two billion, one hundred one million, two hundred twenty thousand, two hundred eleven".