3000012221 has 4 divisors (see below), whose sum is σ = 3002486652. Its totient is φ = 2997537792.

The previous prime is 3000012181. The next prime is 3000012233. The reversal of 3000012221 is 1222100003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1222100003 = 479 ⋅2551357.

It can be written as a sum of positive squares in 2 ways, for example, as 973752025 + 2026260196 = 31205^2 + 45014^2 .

It is a cyclic number.

It is not a de Polignac number, because 3000012221 - 2⁶ = 3000012157 is a prime.

It is a super-2 number, since 2×3000012221² = 18000146652298705682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000012241) 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 3 ways as a sum of consecutive naturals, for example, 1235396 + ... + 1237821.

It is an arithmetic number, because the mean of its divisors is an integer number (750621663).

Almost surely, 2^3000012221 is an apocalyptic number.

It is an amenable number.

3000012221 is a deficient number, since it is larger than the sum of its proper divisors (2474431).

3000012221 is a wasteful number, since it uses less digits than its factorization.

3000012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474430.

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

The square root of 3000012221 is about 54772.3673123592. The cubic root of 3000012221 is about 1442.2515287194.

Adding to 3000012221 its reverse (1222100003), we get a palindrome (4222112224).

The spelling of 3000012221 in words is "three billion, twelve thousand, two hundred twenty-one".