4011441221 has 2 divisors, whose sum is σ = 4011441222. Its totient is φ = 4011441220.

The previous prime is 4011441167. The next prime is 4011441251. The reversal of 4011441221 is 1221441104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3923644321 + 87796900 = 62639^2 + 9370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011441221 - 2¹⁸ = 4011179077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4011441193 and 4011441202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4011441251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005720610 + 2005720611.

It is an arithmetic number, because the mean of its divisors is an integer number (2005720611).

Almost surely, 2^4011441221 is an apocalyptic number.

It is an amenable number.

4011441221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011441221 is an equidigital number, since it uses as much as digits as its factorization.

4011441221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4011441221 is about 63335.9394104169. The cubic root of 4011441221 is about 1588.9130951025.

Adding to 4011441221 its reverse (1221441104), we get a palindrome (5232882325).

The spelling of 4011441221 in words is "four billion, eleven million, four hundred forty-one thousand, two hundred twenty-one".