2120201213 has 4 divisors (see below), whose sum is σ = 2283293628. Its totient is φ = 1957108800.

The previous prime is 2120201179. The next prime is 2120201221. The reversal of 2120201213 is 3121020212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1157836729 + 962364484 = 34027^2 + 31022^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120201213 - 2²⁸ = 1851765757 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 (2120201243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81546188 + ... + 81546213.

It is an arithmetic number, because the mean of its divisors is an integer number (570823407).

Almost surely, 2^2120201213 is an apocalyptic number.

It is an amenable number.

2120201213 is a deficient number, since it is larger than the sum of its proper divisors (163092415).

2120201213 is a wasteful number, since it uses less digits than its factorization.

2120201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163092414.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2120201213 is about 46045.6427145935. The cubic root of 2120201213 is about 1284.6722986578.

Adding to 2120201213 its reverse (3121020212), we get a palindrome (5241221425).

The spelling of 2120201213 in words is "two billion, one hundred twenty million, two hundred one thousand, two hundred thirteen".