2221000013 has 4 divisors (see below), whose sum is σ = 2221191648. Its totient is φ = 2220808380.

The previous prime is 2220999997. The next prime is 2221000043. The reversal of 2221000013 is 3100001222.

It is a happy number.

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: 3100001222 = 2 ⋅1550000611.

It is a cyclic number.

It is not a de Polignac number, because 2221000013 - 2⁴ = 2220999997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220999958 and 2221000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77231 + ... + 102012.

It is an arithmetic number, because the mean of its divisors is an integer number (555297912).

Almost surely, 2^2221000013 is an apocalyptic number.

It is an amenable number.

2221000013 is a deficient number, since it is larger than the sum of its proper divisors (191635).

2221000013 is a wasteful number, since it uses less digits than its factorization.

2221000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191634.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2221000013 is about 47127.4868097165. The cubic root of 2221000013 is about 1304.7165971494.

Adding to 2221000013 its reverse (3100001222), we get a palindrome (5321001235).

The spelling of 2221000013 in words is "two billion, two hundred twenty-one million, thirteen", and thus it is an aban number.