220101110221 has 4 divisors (see below), whose sum is σ = 231685379200. Its totient is φ = 208516841244.

The previous prime is 220101110197. The next prime is 220101110233. The reversal of 220101110221 is 122011101022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122011101022 = 2 ⋅61005550511.

It is a cyclic number.

It is not a de Polignac number, because 220101110221 - 2¹³ = 220101102029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101110521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5792134461 + ... + 5792134498.

It is an arithmetic number, because the mean of its divisors is an integer number (57921344800).

Almost surely, 2^220101110221 is an apocalyptic number.

It is an amenable number.

220101110221 is a deficient number, since it is larger than the sum of its proper divisors (11584268979).

220101110221 is a wasteful number, since it uses less digits than its factorization.

220101110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11584268978.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220101110221 its reverse (122011101022), we get a palindrome (342112211243).

The spelling of 220101110221 in words is "two hundred twenty billion, one hundred one million, one hundred ten thousand, two hundred twenty-one".