2213012021 has 8 divisors (see below), whose sum is σ = 2428151904. Its totient is φ = 2000198320.

The previous prime is 2213012017. The next prime is 2213012027. The reversal of 2213012021 is 1202103122.

It is a happy number.

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

It is not a de Polignac number, because 2213012021 - 2² = 2213012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213011987 and 2213012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579551 + ... + 583356.

It is an arithmetic number, because the mean of its divisors is an integer number (303518988).

Almost surely, 2^2213012021 is an apocalyptic number.

It is an amenable number.

2213012021 is a deficient number, since it is larger than the sum of its proper divisors (215139883).

2213012021 is a wasteful number, since it uses less digits than its factorization.

2213012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163091.

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

The square root of 2213012021 is about 47042.6617125349. The cubic root of 2213012021 is about 1303.1505480299.

Adding to 2213012021 its reverse (1202103122), we get a palindrome (3415115143).

It can be divided in two parts, 221301 and 2021, that added together give a palindrome (223322).

The spelling of 2213012021 in words is "two billion, two hundred thirteen million, twelve thousand, twenty-one".