220353401 has 2 divisors, whose sum is σ = 220353402. Its totient is φ = 220353400.

The previous prime is 220353361. The next prime is 220353407. The reversal of 220353401 is 104353022.

It is a happy number.

220353401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 98029801 = 11060^2 + 9901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220353401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220353407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110176700 + 110176701.

It is an arithmetic number, because the mean of its divisors is an integer number (110176701).

Almost surely, 2^220353401 is an apocalyptic number.

It is an amenable number.

220353401 is a deficient number, since it is larger than the sum of its proper divisors (1).

220353401 is an equidigital number, since it uses as much as digits as its factorization.

220353401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 220353401 is about 14844.3053390854. The cubic root of 220353401 is about 604.0041454403.

The spelling of 220353401 in words is "two hundred twenty million, three hundred fifty-three thousand, four hundred one".