220121110220211 has 24 divisors (see below), whose sum is σ = 317993916055920. Its totient is φ = 146728392148800.

The previous prime is 220121110220201. The next prime is 220121110220237. The reversal of 220121110220211 is 112022011121022.

220121110220211 is a `hidden beast` number, since 2 + 2 + 0 + 121 + 110 + 220 + 211 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-220121110220211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220121110220201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3195174076 + ... + 3195242966.

It is an arithmetic number, because the mean of its divisors is an integer number (13249746502330).

Almost surely, 2^{220121110220211} is an apocalyptic number.

220121110220211 is a deficient number, since it is larger than the sum of its proper divisors (97872805835709).

220121110220211 is a wasteful number, since it uses less digits than its factorization.

220121110220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109747 (or 109744 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220121110220211 its reverse (112022011121022), we get a palindrome (332143121341233).

The spelling of 220121110220211 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred ten million, two hundred twenty thousand, two hundred eleven".