220143044121 has 96 divisors (see below), whose sum is σ = 397898376960. Its totient is φ = 105347658240.

The previous prime is 220143044113. The next prime is 220143044129. The reversal of 220143044121 is 121440341022.

It is an interprime number because it is at equal distance from previous prime (220143044113) and next prime (220143044129).

It is not a de Polignac number, because 220143044121 - 2³ = 220143044113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220143044091 and 220143044100.

It is not an unprimeable number, because it can be changed into a prime (220143044129) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16807251 + ... + 16820343.

It is an arithmetic number, because the mean of its divisors is an integer number (4144774760).

Almost surely, 2^220143044121 is an apocalyptic number.

220143044121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220143044121 is a deficient number, since it is larger than the sum of its proper divisors (177755332839).

220143044121 is a wasteful number, since it uses less digits than its factorization.

220143044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13647 (or 13636 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 220143044121 its reverse (121440341022), we get a palindrome (341583385143).

The spelling of 220143044121 in words is "two hundred twenty billion, one hundred forty-three million, forty-four thousand, one hundred twenty-one".