222020220121 has 16 divisors (see below), whose sum is σ = 258567894144. Its totient is φ = 186681366144.

The previous prime is 222020220091. The next prime is 222020220217. The reversal of 222020220121 is 121022020222.

It is not a de Polignac number, because 222020220121 - 2⁵ = 222020220089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222020220095 and 222020220104.

It is not an unprimeable number, because it can be changed into a prime (222020220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337861 + ... + 2430973.

It is an arithmetic number, because the mean of its divisors is an integer number (16160493384).

Almost surely, 2^222020220121 is an apocalyptic number.

It is an amenable number.

222020220121 is a deficient number, since it is larger than the sum of its proper divisors (36547674023).

222020220121 is an equidigital number, since it uses as much as digits as its factorization.

222020220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99600.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222020220121 its reverse (121022020222), we get a palindrome (343042240343).

The spelling of 222020220121 in words is "two hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred twenty-one".