220221112000121 has 8 divisors (see below), whose sum is σ = 234131715466560. Its totient is φ = 206671822909552.

The previous prime is 220221112000111. The next prime is 220221112000181. The reversal of 220221112000121 is 121000211122022.

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

It is not a de Polignac number, because 220221112000121 - 2²² = 220221107805817 is a prime.

It is a super-3 number, since 3×220221112000121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220221112000121.

It is not an unprimeable number, because it can be changed into a prime (220221112000111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90328592711 + ... + 90328595148.

It is an arithmetic number, because the mean of its divisors is an integer number (29266464433320).

Almost surely, 2^{220221112000121} is an apocalyptic number.

It is an amenable number.

220221112000121 is a deficient number, since it is larger than the sum of its proper divisors (13910603466439).

220221112000121 is a wasteful number, since it uses less digits than its factorization.

220221112000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180657187935.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220221112000121 its reverse (121000211122022), we get a palindrome (341221323122143).

The spelling of 220221112000121 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.