220320311222 has 16 divisors (see below), whose sum is σ = 370268042832. Its totient is φ = 97438957920.

The previous prime is 220320311209. The next prime is 220320311251. The reversal of 220320311222 is 222113023022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220320311194 and 220320311203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135331073 + ... + 135332700.

It is an arithmetic number, because the mean of its divisors is an integer number (23141752677).

Almost surely, 2^220320311222 is an apocalyptic number.

220320311222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220320311222 is a deficient number, since it is larger than the sum of its proper divisors (149947731610).

220320311222 is a wasteful number, since it uses less digits than its factorization.

220320311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270663823.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220320311222 its reverse (222113023022), we get a palindrome (442433334244).

The spelling of 220320311222 in words is "two hundred twenty billion, three hundred twenty million, three hundred eleven thousand, two hundred twenty-two".