220022220121 has 8 divisors (see below), whose sum is σ = 241100584704. Its totient is φ = 199123246320.

The previous prime is 220022220091. The next prime is 220022220127. The reversal of 220022220121 is 121022220022.

220022220121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220022220121 - 2⁹ = 220022219609 is a prime.

It is a super-3 number, since 3×220022220121³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220022220095 and 220022220104.

It is not an unprimeable number, because it can be changed into a prime (220022220127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44845126 + ... + 44850031.

It is an arithmetic number, because the mean of its divisors is an integer number (30137573088).

Almost surely, 2^220022220121 is an apocalyptic number.

It is an amenable number.

220022220121 is a deficient number, since it is larger than the sum of its proper divisors (21078364583).

220022220121 is a wasteful number, since it uses less digits than its factorization.

220022220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89695391.

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

Adding to 220022220121 its reverse (121022220022), we get a palindrome (341044440143).

Subtracting from 220022220121 its reverse (121022220022), we obtain a palindrome (99000000099).

The spelling of 220022220121 in words is "two hundred twenty billion, twenty-two million, two hundred twenty thousand, one hundred twenty-one".