221022220101101 has 4 divisors (see below), whose sum is σ = 225724820528832. Its totient is φ = 216319619673372.

The previous prime is 221022220101083. The next prime is 221022220101169. The reversal of 221022220101101 is 101101022220122.

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 221022220101101 - 2³⁸ = 220747342194157 is a prime.

It is a super-2 number, since 2×221022220101101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221022220101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022220101401) 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, 2351300213795 + ... + 2351300213888.

It is an arithmetic number, because the mean of its divisors is an integer number (56431205132208).

Almost surely, 2^{221022220101101} is an apocalyptic number.

It is an amenable number.

221022220101101 is a deficient number, since it is larger than the sum of its proper divisors (4702600427731).

221022220101101 is an equidigital number, since it uses as much as digits as its factorization.

221022220101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702600427730.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221022220101101 its reverse (101101022220122), we get a palindrome (322123242321223).

The spelling of 221022220101101 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty million, one hundred one thousand, one hundred one".