21202210111101 has 8 divisors (see below), whose sum is σ = 28272209210784. Its totient is φ = 14133508876080.

The previous prime is 21202210111073. The next prime is 21202210111109. The reversal of 21202210111101 is 10111101220212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21202210111101 - 2⁷ = 21202210110973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202210111109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324428046 + ... + 324493391.

It is an arithmetic number, because the mean of its divisors is an integer number (3534026151348).

Almost surely, 2^{21202210111101} is an apocalyptic number.

It is an amenable number.

21202210111101 is a deficient number, since it is larger than the sum of its proper divisors (7069999099683).

21202210111101 is a wasteful number, since it uses less digits than its factorization.

21202210111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648932331.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 21202210111101 its reverse (10111101220212), we get a palindrome (31313311331313).

The spelling of 21202210111101 in words is "twenty-one trillion, two hundred two billion, two hundred ten million, one hundred eleven thousand, one hundred one".