2221001213 has 8 divisors (see below), whose sum is σ = 2279973696. Its totient is φ = 2162361600.

The previous prime is 2221001207. The next prime is 2221001243. The reversal of 2221001213 is 3121001222.

It is a happy number.

2221001213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221001213 - 2¹² = 2220997117 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 (2221001203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69668 + ... + 96413.

It is an arithmetic number, because the mean of its divisors is an integer number (284996712).

Almost surely, 2^2221001213 is an apocalyptic number.

It is an amenable number.

2221001213 is a deficient number, since it is larger than the sum of its proper divisors (58972483).

2221001213 is a wasteful number, since it uses less digits than its factorization.

2221001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166435.

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

The square root of 2221001213 is about 47127.4995411384. The cubic root of 2221001213 is about 1304.7168321276.

Adding to 2221001213 its reverse (3121001222), we get a palindrome (5342002435).

Subtracting 2221001213 from its reverse (3121001222), we obtain a palindrome (900000009).

The spelling of 2221001213 in words is "two billion, two hundred twenty-one million, one thousand, two hundred thirteen".