110122222001221 has 8 divisors (see below), whose sum is σ = 110597582473560. Its totient is φ = 109646884887552.

The previous prime is 110122222001219. The next prime is 110122222001237. The reversal of 110122222001221 is 122100222221011.

It can be written as a sum of positive squares in 4 ways, for example, as 5380609108996 + 104741612892225 = 2319614^2 + 10234335^2 .

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 110122222001221 - 2¹ = 110122222001219 is a prime.

It is a super-2 number, since 2×110122222001221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110122222001521) 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, 3642651 + ... + 15281143.

It is an arithmetic number, because the mean of its divisors is an integer number (13824697809195).

Almost surely, 2^{110122222001221} is an apocalyptic number.

It is an amenable number.

110122222001221 is a deficient number, since it is larger than the sum of its proper divisors (475360472339).

110122222001221 is a wasteful number, since it uses less digits than its factorization.

110122222001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11679335.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 110122222001221 its reverse (122100222221011), we get a palindrome (232222444222232).

The spelling of 110122222001221 in words is "one hundred ten trillion, one hundred twenty-two billion, two hundred twenty-two million, one thousand, two hundred twenty-one".