211211010012211 has 24 divisors (see below), whose sum is σ = 232757788107600. Its totient is φ = 191513882757120.

The previous prime is 211211010012181. The next prime is 211211010012329. The reversal of 211211010012211 is 112210010112112.

It is not a de Polignac number, because 211211010012211 - 2¹¹ = 211211010010163 is a prime.

It is a super-2 number, since 2×211211010012211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211211010016211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151590711 + ... + 152977663.

It is an arithmetic number, because the mean of its divisors is an integer number (9698241171150).

Almost surely, 2^{211211010012211} is an apocalyptic number.

211211010012211 is a deficient number, since it is larger than the sum of its proper divisors (21546778095389).

211211010012211 is a wasteful number, since it uses less digits than its factorization.

211211010012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390227 (or 1390216 counting only the distinct ones).

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

Adding to 211211010012211 its reverse (112210010112112), we get a palindrome (323421020124323).

Subtracting from 211211010012211 its reverse (112210010112112), we obtain a palindrome (99000999900099).

The spelling of 211211010012211 in words is "two hundred eleven trillion, two hundred eleven billion, ten million, twelve thousand, two hundred eleven".