220220022121 has 8 divisors (see below), whose sum is σ = 244772855424. Its totient is φ = 196422660720.

The previous prime is 220220022107. The next prime is 220220022137. The reversal of 220220022121 is 121220022022.

220220022121 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 not a de Polignac number, because 220220022121 - 2¹⁹ = 220219497833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220220022095 and 220220022104.

It is not an unprimeable number, because it can be changed into a prime (220220022161) 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, 188867361 + ... + 188868526.

It is an arithmetic number, because the mean of its divisors is an integer number (30596606928).

Almost surely, 2^220220022121 is an apocalyptic number.

It is an amenable number.

220220022121 is a deficient number, since it is larger than the sum of its proper divisors (24552833303).

220220022121 is a wasteful number, since it uses less digits than its factorization.

220220022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377735951.

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

Adding to 220220022121 its reverse (121220022022), we get a palindrome (341440044143).

Subtracting from 220220022121 its reverse (121220022022), we obtain a palindrome (99000000099).

The spelling of 220220022121 in words is "two hundred twenty billion, two hundred twenty million, twenty-two thousand, one hundred twenty-one".