221022020221101 has 24 divisors (see below), whose sum is σ = 353475288794784. Its totient is φ = 131953444904160.

The previous prime is 221022020221097. The next prime is 221022020221103. The reversal of 221022020221101 is 101122020220122.

It is a happy number.

221022020221101 is a `hidden beast` number, since 2 + 210 + 220 + 2 + 0 + 221 + 10 + 1 = 666.

It is not a de Polignac number, because 221022020221101 - 2² = 221022020221097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022020221103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16660781866 + ... + 16660795131.

It is an arithmetic number, because the mean of its divisors is an integer number (14728137033116).

Almost surely, 2^{221022020221101} is an apocalyptic number.

It is an amenable number.

221022020221101 is a deficient number, since it is larger than the sum of its proper divisors (132453268573683).

221022020221101 is a wasteful number, since it uses less digits than its factorization.

221022020221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33321577081 (or 33321577078 counting only the distinct ones).

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

Adding to 221022020221101 its reverse (101122020220122), we get a palindrome (322144040441223).

The spelling of 221022020221101 in words is "two hundred twenty-one trillion, twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred one".