220221201022101 has 48 divisors (see below), whose sum is σ = 341162458640640. Its totient is φ = 136460596371840.

The previous prime is 220221201022099. The next prime is 220221201022111. The reversal of 220221201022101 is 101220102122022.

It is a happy number.

220221201022101 is a `hidden beast` number, since 2 + 20 + 221 + 201 + 0 + 221 + 0 + 1 = 666.

It is not a de Polignac number, because 220221201022101 - 2¹ = 220221201022099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221201022111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 703558291 + ... + 703871231.

It is an arithmetic number, because the mean of its divisors is an integer number (7107551221680).

Almost surely, 2^{220221201022101} is an apocalyptic number.

It is an amenable number.

220221201022101 is a deficient number, since it is larger than the sum of its proper divisors (120941257618539).

220221201022101 is a wasteful number, since it uses less digits than its factorization.

220221201022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390666 (or 390663 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220221201022101 its reverse (101220102122022), we get a palindrome (321441303144123).

The spelling of 220221201022101 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, one hundred one".