2210211121 has 2 divisors, whose sum is σ = 2210211122. Its totient is φ = 2210211120.

The previous prime is 2210211079. The next prime is 2210211131. The reversal of 2210211121 is 1211120122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1255710096 + 954501025 = 35436^2 + 30895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210211121 - 2⁹ = 2210210609 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210211131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105105560 + 1105105561.

It is an arithmetic number, because the mean of its divisors is an integer number (1105105561).

Almost surely, 2^2210211121 is an apocalyptic number.

It is an amenable number.

2210211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210211121 is an equidigital number, since it uses as much as digits as its factorization.

2210211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2210211121 is about 47012.8825004381. The cubic root of 2210211121 is about 1302.6005381653.

Adding to 2210211121 its reverse (1211120122), we get a palindrome (3421331243).

Subtracting from 2210211121 its reverse (1211120122), we obtain a palindrome (999090999).

The spelling of 2210211121 in words is "two billion, two hundred ten million, two hundred eleven thousand, one hundred twenty-one".