110020111212221 has 8 divisors (see below), whose sum is σ = 125737347363264. Its totient is φ = 94302894412800.

The previous prime is 110020111212149. The next prime is 110020111212227. The reversal of 110020111212221 is 122212111020011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110020111212221 is a prime.

It is a super-2 number, since 2×110020111212221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110020111212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110020111212227) 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, 10650746 + ... + 18261396.

It is an arithmetic number, because the mean of its divisors is an integer number (15717168420408).

Almost surely, 2^{110020111212221} is an apocalyptic number.

It is an amenable number.

110020111212221 is a deficient number, since it is larger than the sum of its proper divisors (15717236151043).

110020111212221 is an equidigital number, since it uses as much as digits as its factorization.

110020111212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9675811.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110020111212221 its reverse (122212111020011), we get a palindrome (232232222232232).

The spelling of 110020111212221 in words is "one hundred ten trillion, twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-one".