220210221121 has 8 divisors (see below), whose sum is σ = 241571397600. Its totient is φ = 199072722240.

The previous prime is 220210221113. The next prime is 220210221137. The reversal of 220210221121 is 121122012022.

It is a happy number.

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 220210221121 - 2³ = 220210221113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220210221095 and 220210221104.

It is not an unprimeable number, because it can be changed into a prime (220210221221) 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, 55917336 + ... + 55921273.

It is an arithmetic number, because the mean of its divisors is an integer number (30196424700).

Almost surely, 2^220210221121 is an apocalyptic number.

It is an amenable number.

220210221121 is a deficient number, since it is larger than the sum of its proper divisors (21361176479).

220210221121 is a wasteful number, since it uses less digits than its factorization.

220210221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111838799.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220210221121 its reverse (121122012022), we get a palindrome (341332233143).

The spelling of 220210221121 in words is "two hundred twenty billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".