110212211221 has 8 divisors (see below), whose sum is σ = 128021679104. Its totient is φ = 92918959920.

The previous prime is 110212211177. The next prime is 110212211227. The reversal of 110212211221 is 122112212011.

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

It is a cyclic number.

It is not a de Polignac number, because 110212211221 - 2¹³ = 110212203029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110212211195 and 110212211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212211227) 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, 129053685 + ... + 129054538.

It is an arithmetic number, because the mean of its divisors is an integer number (16002709888).

Almost surely, 2^110212211221 is an apocalyptic number.

It is an amenable number.

110212211221 is a deficient number, since it is larger than the sum of its proper divisors (17809467883).

110212211221 is an equidigital number, since it uses as much as digits as its factorization.

110212211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258108291.

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

Adding to 110212211221 its reverse (122112212011), we get a palindrome (232324423232).

The spelling of 110212211221 in words is "one hundred ten billion, two hundred twelve million, two hundred eleven thousand, two hundred twenty-one".