220320311201 has 4 divisors (see below), whose sum is σ = 221364483504. Its totient is φ = 219276138900.

The previous prime is 220320311143. The next prime is 220320311209. The reversal of 220320311201 is 102113023022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220320311201 - 2⁶ = 220320311137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220320311201.

It is not an unprimeable number, because it can be changed into a prime (220320311209) 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, 522085835 + ... + 522086256.

It is an arithmetic number, because the mean of its divisors is an integer number (55341120876).

Almost surely, 2^220320311201 is an apocalyptic number.

It is an amenable number.

220320311201 is a deficient number, since it is larger than the sum of its proper divisors (1044172303).

220320311201 is a wasteful number, since it uses less digits than its factorization.

220320311201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044172302.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220320311201 its reverse (102113023022), we get a palindrome (322433334223).

The spelling of 220320311201 in words is "two hundred twenty billion, three hundred twenty million, three hundred eleven thousand, two hundred one".