221022110221101 has 40 divisors (see below), whose sum is σ = 377340875588160. Its totient is φ = 126296652261312.

The previous prime is 221022110221091. The next prime is 221022110221109. The reversal of 221022110221101 is 101122011220122.

221022110221101 is a `hidden beast` number, since 2 + 210 + 22 + 110 + 221 + 101 = 666.

It is not a de Polignac number, because 221022110221101 - 2⁶ = 221022110221037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022110221109) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40250425 + ... + 45410801.

It is an arithmetic number, because the mean of its divisors is an integer number (9433521889704).

Almost surely, 2^{221022110221101} is an apocalyptic number.

221022110221101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221022110221101 is a deficient number, since it is larger than the sum of its proper divisors (156318765367059).

221022110221101 is an equidigital number, since it uses as much as digits as its factorization.

221022110221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235935 (or 5235926 counting only the distinct ones).

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

Adding to 221022110221101 its reverse (101122011220122), we get a palindrome (322144121441223).

The spelling of 221022110221101 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred ten million, two hundred twenty-one thousand, one hundred one".