2125220213 has 2 divisors, whose sum is σ = 2125220214. Its totient is φ = 2125220212.

The previous prime is 2125220203. The next prime is 2125220219. The reversal of 2125220213 is 3120225212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2036446129 + 88774084 = 45127^2 + 9422^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125220213 - 2¹² = 2125216117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125220219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062610106 + 1062610107.

It is an arithmetic number, because the mean of its divisors is an integer number (1062610107).

Almost surely, 2^2125220213 is an apocalyptic number.

It is an amenable number.

2125220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125220213 is an equidigital number, since it uses as much as digits as its factorization.

2125220213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2125220213 is about 46100.1107699320. The cubic root of 2125220213 is about 1285.6852039624.

Adding to 2125220213 its reverse (3120225212), we get a palindrome (5245445425).

The spelling of 2125220213 in words is "two billion, one hundred twenty-five million, two hundred twenty thousand, two hundred thirteen".