2211211121 has 8 divisors (see below), whose sum is σ = 2608617984. Its totient is φ = 1834184160.

The previous prime is 2211211103. The next prime is 2211211133. The reversal of 2211211121 is 1211121122.

2211211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2211211121 - 2¹⁴ = 2211194737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211211096 and 2211211105.

It is not an unprimeable number, because it can be changed into a prime (2211211151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5094740 + ... + 5095173.

It is an arithmetic number, because the mean of its divisors is an integer number (326077248).

Almost surely, 2^2211211121 is an apocalyptic number.

It is an amenable number.

2211211121 is a deficient number, since it is larger than the sum of its proper divisors (397406863).

2211211121 is a wasteful number, since it uses less digits than its factorization.

2211211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189951.

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

The square root of 2211211121 is about 47023.5166804866. The cubic root of 2211211121 is about 1302.7969604472.

Adding to 2211211121 its reverse (1211121122), we get a palindrome (3422332243).

It can be divided in two parts, 22112 and 11121, that added together give a palindrome (33233).

The spelling of 2211211121 in words is "two billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-one".