220121102222 has 16 divisors (see below), whose sum is σ = 377457112032. Its totient is φ = 94310952480.

The previous prime is 220121102213. The next prime is 220121102281. The reversal of 220121102222 is 222201121022.

It is a happy number.

220121102222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220121102222.

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, 2170553 + ... + 2269700.

It is an arithmetic number, because the mean of its divisors is an integer number (23591069502).

Almost surely, 2^220121102222 is an apocalyptic number.

220121102222 is a deficient number, since it is larger than the sum of its proper divisors (157336009810).

220121102222 is a wasteful number, since it uses less digits than its factorization.

220121102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443803.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220121102222 its reverse (222201121022), we get a palindrome (442322223244).

The spelling of 220121102222 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-two".