3011223221 has 8 divisors (see below), whose sum is σ = 3082045824. Its totient is φ = 2940436800.

The previous prime is 3011223217. The next prime is 3011223233. The reversal of 3011223221 is 1223221103.

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

It is a cyclic number.

It is not a de Polignac number, because 3011223221 - 2² = 3011223217 is a prime.

It is a super-2 number, since 2×3011223221² = 18134930573379229682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3011223221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011223251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236621 + ... + 249021.

It is an arithmetic number, because the mean of its divisors is an integer number (385255728).

Almost surely, 2^3011223221 is an apocalyptic number.

It is an amenable number.

3011223221 is a deficient number, since it is larger than the sum of its proper divisors (70822603).

3011223221 is a wasteful number, since it uses less digits than its factorization.

3011223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18091.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3011223221 is about 54874.6136296193. The cubic root of 3011223221 is about 1444.0458527872.

Adding to 3011223221 its reverse (1223221103), we get a palindrome (4234444324).

The spelling of 3011223221 in words is "three billion, eleven million, two hundred twenty-three thousand, two hundred twenty-one".