220201201221222 has 128 divisors (see below), whose sum is σ = 478418725306368. Its totient is φ = 67164074640000.

The previous prime is 220201201221173. The next prime is 220201201221229. The reversal of 220201201221222 is 222122102102022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201201221229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67733373097 + ... + 67733376347.

It is an arithmetic number, because the mean of its divisors is an integer number (3737646291456).

Almost surely, 2^{220201201221222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220201201221222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239209362653184).

220201201221222 is an abundant number, since it is smaller than the sum of its proper divisors (258217524085146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220201201221222 is a wasteful number, since it uses less digits than its factorization.

220201201221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8554.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220201201221222 its reverse (222122102102022), we get a palindrome (442323303323244).

The spelling of 220201201221222 in words is "two hundred twenty trillion, two hundred one billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-two".