220015022121 has 20 divisors (see below), whose sum is σ = 342954175872. Its totient is φ = 140299433208.

The previous prime is 220015022081. The next prime is 220015022131. The reversal of 220015022121 is 121220510022.

220015022121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220015022121 - 2⁹ = 220015021609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220015022094 and 220015022103.

It is not an unprimeable number, because it can be changed into a prime (220015022131) 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 19 ways as a sum of consecutive naturals, for example, 59046721 + ... + 59050446.

Almost surely, 2^220015022121 is an apocalyptic number.

It is an amenable number.

220015022121 is a deficient number, since it is larger than the sum of its proper divisors (122939153751).

220015022121 is a wasteful number, since it uses less digits than its factorization.

220015022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118097202 (or 118097193 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 220015022121 its reverse (121220510022), we get a palindrome (341235532143).

The spelling of 220015022121 in words is "two hundred twenty billion, fifteen million, twenty-two thousand, one hundred twenty-one".