1110223131221 has 8 divisors (see below), whose sum is σ = 1216065904920. Its totient is φ = 1008884305408.

The previous prime is 1110223131217. The next prime is 1110223131253. The reversal of 1110223131221 is 1221313220111.

It can be written as a sum of positive squares in 4 ways, for example, as 102931888900 + 1007291242321 = 320830^2 + 1003639^2 .

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 1110223131221 - 2² = 1110223131217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110223131193 and 1110223131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110223136221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125986456 + ... + 1125987441.

It is an arithmetic number, because the mean of its divisors is an integer number (152008238115).

Almost surely, 2^{1110223131221} is an apocalyptic number.

It is an amenable number.

1110223131221 is a deficient number, since it is larger than the sum of its proper divisors (105842773699).

1110223131221 is a wasteful number, since it uses less digits than its factorization.

1110223131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251973943.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1110223131221 its reverse (1221313220111), we get a palindrome (2331536351332).

The spelling of 1110223131221 in words is "one trillion, one hundred ten billion, two hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".