220122001122221 has 16 divisors (see below), whose sum is σ = 241606283200128. Its totient is φ = 198884066395200.

The previous prime is 220122001122217. The next prime is 220122001122259. The reversal of 220122001122221 is 122221100221022.

220122001122221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220122001122221 - 2² = 220122001122217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220122001122193 and 220122001122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122001121221) 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, 14987345 + ... + 25784966.

It is an arithmetic number, because the mean of its divisors is an integer number (15100392700008).

Almost surely, 2^{220122001122221} is an apocalyptic number.

It is an amenable number.

220122001122221 is a deficient number, since it is larger than the sum of its proper divisors (21484282077907).

220122001122221 is a wasteful number, since it uses less digits than its factorization.

220122001122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40775332.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220122001122221 its reverse (122221100221022), we get a palindrome (342343101343243).

The spelling of 220122001122221 in words is "two hundred twenty trillion, one hundred twenty-two billion, one million, one hundred twenty-two thousand, two hundred twenty-one".