220022221122221 has 16 divisors (see below), whose sum is σ = 251782001063424. Its totient is φ = 188344455012864.

The previous prime is 220022221122203. The next prime is 220022221122241. The reversal of 220022221122221 is 122221122220022.

220022221122221 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 220022221122221 - 2²⁶ = 220022154013357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022221122241) 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, 705692861 + ... + 706004573.

It is an arithmetic number, because the mean of its divisors is an integer number (15736375066464).

Almost surely, 2^{220022221122221} is an apocalyptic number.

It is an amenable number.

220022221122221 is a deficient number, since it is larger than the sum of its proper divisors (31759779941203).

220022221122221 is a wasteful number, since it uses less digits than its factorization.

220022221122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442940.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 220022221122221 its reverse (122221122220022), we get a palindrome (342243343342243).

The spelling of 220022221122221 in words is "two hundred twenty trillion, twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".