2221010213 has 4 divisors (see below), whose sum is σ = 2221848780. Its totient is φ = 2220171648.

The previous prime is 2221010189. The next prime is 2221010257. The reversal of 2221010213 is 3120101222.

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 1516479364 + 704530849 = 38942^2 + 26543^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221010213 - 2²⁰ = 2219961637 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 (2221010273) 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, 415298 + ... + 420611.

It is an arithmetic number, because the mean of its divisors is an integer number (555462195).

Almost surely, 2^2221010213 is an apocalyptic number.

It is an amenable number.

2221010213 is a deficient number, since it is larger than the sum of its proper divisors (838567).

2221010213 is an equidigital number, since it uses as much as digits as its factorization.

2221010213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838566.

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

The square root of 2221010213 is about 47127.5950266932. The cubic root of 2221010213 is about 1304.7185944612.

Adding to 2221010213 its reverse (3120101222), we get a palindrome (5341111435).

It can be divided in two parts, 22210 and 10213, that added together give a palindrome (32423).

The spelling of 2221010213 in words is "two billion, two hundred twenty-one million, ten thousand, two hundred thirteen".