2213121301 has 4 divisors (see below), whose sum is σ = 2213265472. Its totient is φ = 2212977132.

The previous prime is 2213121271. The next prime is 2213121307. The reversal of 2213121301 is 1031213122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1031213122 = 2 ⋅515606561.

It is a cyclic number.

It is not a de Polignac number, because 2213121301 - 2⁵ = 2213121269 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 (2213121307) 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, 45885 + ... + 80818.

It is an arithmetic number, because the mean of its divisors is an integer number (553316368).

Almost surely, 2^2213121301 is an apocalyptic number.

It is an amenable number.

2213121301 is a deficient number, since it is larger than the sum of its proper divisors (144171).

2213121301 is a wasteful number, since it uses less digits than its factorization.

2213121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144170.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2213121301 is about 47043.8231971000. The cubic root of 2213121301 is about 1303.1719978227.

Adding to 2213121301 its reverse (1031213122), we get a palindrome (3244334423).

The spelling of 2213121301 in words is "two billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred one".