110002101221021 has 2 divisors, whose sum is σ = 110002101221022. Its totient is φ = 110002101221020.

The previous prime is 110002101220997. The next prime is 110002101221057. The reversal of 110002101221021 is 120122101200011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94954793025625 + 15047308195396 = 9744475^2 + 3879086^2 .

It is a cyclic number.

It is not a de Polignac number, because 110002101221021 - 2³⁸ = 109727223314077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110002101220987 and 110002101221005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110002101221521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55001050610510 + 55001050610511.

It is an arithmetic number, because the mean of its divisors is an integer number (55001050610511).

Almost surely, 2^{110002101221021} is an apocalyptic number.

It is an amenable number.

110002101221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110002101221021 is an equidigital number, since it uses as much as digits as its factorization.

110002101221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110002101221021 its reverse (120122101200011), we get a palindrome (230124202421032).

The spelling of 110002101221021 in words is "one hundred ten trillion, two billion, one hundred one million, two hundred twenty-one thousand, twenty-one".