220022121 has 8 divisors (see below), whose sum is σ = 320032224. Its totient is φ = 133346720.

The previous prime is 220022119. The next prime is 220022141. The reversal of 220022121 is 121220022.

220022121 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 220022121 - 2¹ = 220022119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220022097 and 220022106.

It is not an unprimeable number, because it can be changed into a prime (220022141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3333636 + ... + 3333701.

It is an arithmetic number, because the mean of its divisors is an integer number (40004028).

Almost surely, 2^220022121 is an apocalyptic number.

It is an amenable number.

220022121 is a deficient number, since it is larger than the sum of its proper divisors (100010103).

220022121 is a wasteful number, since it uses less digits than its factorization.

220022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667351.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 220022121 is about 14833.1426542051. The cubic root of 220022121 is about 603.7013063790.

Adding to 220022121 its reverse (121220022), we get a palindrome (341242143).

It can be divided in two parts, 220022 and 121, that multiplied together give a palindrome (26622662).

The spelling of 220022121 in words is "two hundred twenty million, twenty-two thousand, one hundred twenty-one".