220334401 has 4 divisors (see below), whose sum is σ = 251810752. Its totient is φ = 188858052.

The previous prime is 220334381. The next prime is 220334417. The reversal of 220334401 is 104433022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104433022 = 2 ⋅52216511.

It is a cyclic number.

It is not a de Polignac number, because 220334401 - 2¹³ = 220326209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220334441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15738165 + ... + 15738178.

It is an arithmetic number, because the mean of its divisors is an integer number (62952688).

Almost surely, 2^220334401 is an apocalyptic number.

It is an amenable number.

220334401 is a deficient number, since it is larger than the sum of its proper divisors (31476351).

220334401 is an equidigital number, since it uses as much as digits as its factorization.

220334401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31476350.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 220334401 is about 14843.6653492323. The cubic root of 220334401 is about 603.9867848299.

Adding to 220334401 its reverse (104433022), we get a palindrome (324767423).

The spelling of 220334401 in words is "two hundred twenty million, three hundred thirty-four thousand, four hundred one".