2051202213 has 6 divisors (see below), whose sum is σ = 2962847654. Its totient is φ = 1367468136.

The previous prime is 2051202187. The next prime is 2051202217. The reversal of 2051202213 is 3122021502.

It can be written as a sum of positive squares in only one way, i.e., 1124730369 + 926471844 = 33537^2 + 30438^2 .

It is not a de Polignac number, because 2051202213 - 2⁶ = 2051202149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051202217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113955670 + ... + 113955687.

Almost surely, 2^2051202213 is an apocalyptic number.

It is an amenable number.

2051202213 is a deficient number, since it is larger than the sum of its proper divisors (911645441).

2051202213 is a wasteful number, since it uses less digits than its factorization.

2051202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227911363 (or 227911360 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2051202213 is about 45290.1999664387. The cubic root of 2051202213 is about 1270.5823714254.

Adding to 2051202213 its reverse (3122021502), we get a palindrome (5173223715).

The spelling of 2051202213 in words is "two billion, fifty-one million, two hundred two thousand, two hundred thirteen".