220210022212121 has 8 divisors (see below), whose sum is σ = 231848184712320. Its totient is φ = 208576675845072.

The previous prime is 220210022212087. The next prime is 220210022212123. The reversal of 220210022212121 is 121212220012022.

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 220210022212121 - 2³⁰ = 220208948470297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220210022212093 and 220210022212102.

It is not an unprimeable number, because it can be changed into a prime (220210022212123) 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, 1203939425 + ... + 1204122318.

It is an arithmetic number, because the mean of its divisors is an integer number (28981023089040).

Almost surely, 2^{220210022212121} is an apocalyptic number.

It is an amenable number.

220210022212121 is a deficient number, since it is larger than the sum of its proper divisors (11638162500199).

220210022212121 is a wasteful number, since it uses less digits than its factorization.

220210022212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408066575.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220210022212121 its reverse (121212220012022), we get a palindrome (341422242224143).

The spelling of 220210022212121 in words is "two hundred twenty trillion, two hundred ten billion, twenty-two million, two hundred twelve thousand, one hundred twenty-one".