4011220321 has 16 divisors (see below), whose sum is σ = 4247965440. Its totient is φ = 3777114240.

The previous prime is 4011220307. The next prime is 4011220349. The reversal of 4011220321 is 1230221104.

It is a cyclic number.

It is not a de Polignac number, because 4011220321 - 2⁹ = 4011219809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4011220295 and 4011220304.

It is not an unprimeable number, because it can be changed into a prime (4011220351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3361701 + ... + 3362893.

It is an arithmetic number, because the mean of its divisors is an integer number (265497840).

Almost surely, 2^4011220321 is an apocalyptic number.

It is an amenable number.

4011220321 is a deficient number, since it is larger than the sum of its proper divisors (236745119).

4011220321 is a wasteful number, since it uses less digits than its factorization.

4011220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4011220321 is about 63334.1955107981. The cubic root of 4011220321 is about 1588.8839287484.

Adding to 4011220321 its reverse (1230221104), we get a palindrome (5241441425).

The spelling of 4011220321 in words is "four billion, eleven million, two hundred twenty thousand, three hundred twenty-one".