3000011221 has 4 divisors (see below), whose sum is σ = 3000742272. Its totient is φ = 2999280172.

The previous prime is 3000011197. The next prime is 3000011239. The reversal of 3000011221 is 1221100003.

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.

It is a cyclic number.

It is not a de Polignac number, because 3000011221 - 2⁷ = 3000011093 is a prime.

It is a super-2 number, since 2×3000011221² = 18000134652251821682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3000011198 and 3000011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000011921) 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, 359335 + ... + 367588.

It is an arithmetic number, because the mean of its divisors is an integer number (750185568).

Almost surely, 2^3000011221 is an apocalyptic number.

It is an amenable number.

3000011221 is a deficient number, since it is larger than the sum of its proper divisors (731051).

3000011221 is an equidigital number, since it uses as much as digits as its factorization.

3000011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731050.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3000011221 is about 54772.3581836678. The cubic root of 3000011221 is about 1442.2513684699.

Adding to 3000011221 its reverse (1221100003), we get a palindrome (4221111224).

The spelling of 3000011221 in words is "three billion, eleven thousand, two hundred twenty-one".