220221022221101 has 4 divisors (see below), whose sum is σ = 240241115150304. Its totient is φ = 200200929291900.

The previous prime is 220221022221073. The next prime is 220221022221107. The reversal of 220221022221101 is 101122220122022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220221022221101 - 2¹⁰ = 220221022220077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221022221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010046464585 + ... + 10010046464606.

It is an arithmetic number, because the mean of its divisors is an integer number (60060278787576).

Almost surely, 2^{220221022221101} is an apocalyptic number.

It is an amenable number.

220221022221101 is a deficient number, since it is larger than the sum of its proper divisors (20020092929203).

220221022221101 is a wasteful number, since it uses less digits than its factorization.

220221022221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020092929202.

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

Adding to 220221022221101 its reverse (101122220122022), we get a palindrome (321343242343123).

The spelling of 220221022221101 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred one".