4015220401 has 2 divisors, whose sum is σ = 4015220402. Its totient is φ = 4015220400.

The previous prime is 4015220389. The next prime is 4015220411. The reversal of 4015220401 is 1040225104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2542579776 + 1472640625 = 50424^2 + 38375^2 .

It is a cyclic number.

It is not a de Polignac number, because 4015220401 - 2⁹ = 4015219889 is a prime.

It is a super-2 number, since 2×4015220401² = 32243989737213201602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4015220411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007610200 + 2007610201.

It is an arithmetic number, because the mean of its divisors is an integer number (2007610201).

Almost surely, 2^4015220401 is an apocalyptic number.

It is an amenable number.

4015220401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4015220401 is an equidigital number, since it uses as much as digits as its factorization.

4015220401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4015220401 is about 63365.7667909101. The cubic root of 4015220401 is about 1589.4119103281.

Adding to 4015220401 its reverse (1040225104), we get a palindrome (5055445505).

The spelling of 4015220401 in words is "four billion, fifteen million, two hundred twenty thousand, four hundred one".