220441521401 has 2 divisors, whose sum is σ = 220441521402. Its totient is φ = 220441521400.

The previous prime is 220441521367. The next prime is 220441521427. The reversal of 220441521401 is 104125144022.

It is an a-pointer prime, because the next prime (220441521427) can be obtained adding 220441521401 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133579285225 + 86862236176 = 365485^2 + 294724^2 .

It is a cyclic number.

It is not a de Polignac number, because 220441521401 - 2⁶ = 220441521337 is a prime.

It is not a weakly prime, because it can be changed into another prime (220441521481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110220760700 + 110220760701.

It is an arithmetic number, because the mean of its divisors is an integer number (110220760701).

Almost surely, 2^220441521401 is an apocalyptic number.

It is an amenable number.

220441521401 is a deficient number, since it is larger than the sum of its proper divisors (1).

220441521401 is an equidigital number, since it uses as much as digits as its factorization.

220441521401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 220441521401 its reverse (104125144022), we get a palindrome (324566665423).

The spelling of 220441521401 in words is "two hundred twenty billion, four hundred forty-one million, five hundred twenty-one thousand, four hundred one".