110211212221 has 16 divisors (see below), whose sum is σ = 124244607168. Its totient is φ = 96892992000.

The previous prime is 110211212219. The next prime is 110211212231. The reversal of 110211212221 is 122212112011.

It is a cyclic number.

It is not a de Polignac number, because 110211212221 - 2¹ = 110211212219 is a prime.

It is a super-2 number, since 2×110211212221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110211212195 and 110211212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110211212231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105716 + ... + 1201261.

It is an arithmetic number, because the mean of its divisors is an integer number (7765287948).

Almost surely, 2^110211212221 is an apocalyptic number.

110211212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110211212221 is a deficient number, since it is larger than the sum of its proper divisors (14033394947).

110211212221 is a wasteful number, since it uses less digits than its factorization.

110211212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307132.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110211212221 its reverse (122212112011), we get a palindrome (232423324232).

The spelling of 110211212221 in words is "one hundred ten billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-one".