2211330121 has 32 divisors (see below), whose sum is σ = 3041531136. Its totient is φ = 1551744000.

The previous prime is 2211330113. The next prime is 2211330151. The reversal of 2211330121 is 1210331122.

It is a cyclic number.

It is not a de Polignac number, because 2211330121 - 2³ = 2211330113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211330095 and 2211330104.

It is not an unprimeable number, because it can be changed into a prime (2211330151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14101 + ... + 67981.

It is an arithmetic number, because the mean of its divisors is an integer number (95047848).

Almost surely, 2^2211330121 is an apocalyptic number.

It is an amenable number.

2211330121 is a deficient number, since it is larger than the sum of its proper divisors (830201015).

2211330121 is a wasteful number, since it uses less digits than its factorization.

2211330121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53953.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2211330121 is about 47024.7819877987. The cubic root of 2211330121 is about 1302.8203307555.

Adding to 2211330121 its reverse (1210331122), we get a palindrome (3421661243).

The spelling of 2211330121 in words is "two billion, two hundred eleven million, three hundred thirty thousand, one hundred twenty-one".