220312220201 has 16 divisors (see below), whose sum is σ = 225149906448. Its totient is φ = 215516774400.

The previous prime is 220312220189. The next prime is 220312220221. The reversal of 220312220201 is 102022213022.

It can be written as a sum of positive squares in 8 ways, for example, as 2391307801 + 217920912400 = 48901^2 + 466820^2 .

It is a cyclic number.

It is not a de Polignac number, because 220312220201 - 2²⁶ = 220245111337 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 220312220201.

It is not an unprimeable number, because it can be changed into a prime (220312220221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10226321 + ... + 10247841.

It is an arithmetic number, because the mean of its divisors is an integer number (14071869153).

Almost surely, 2^220312220201 is an apocalyptic number.

It is an amenable number.

220312220201 is a deficient number, since it is larger than the sum of its proper divisors (4837686247).

220312220201 is a wasteful number, since it uses less digits than its factorization.

220312220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22492.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220312220201 its reverse (102022213022), we get a palindrome (322334433223).

The spelling of 220312220201 in words is "two hundred twenty billion, three hundred twelve million, two hundred twenty thousand, two hundred one".