1110221209973 has 4 divisors (see below), whose sum is σ = 1110237832428. Its totient is φ = 1110204587520.

The previous prime is 1110221209967. The next prime is 1110221210023. The reversal of 1110221209973 is 3799021220111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 674380936849 + 435840273124 = 821207^2 + 660182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110221209973 - 2¹⁴ = 1110221193589 is a prime.

It is a super-2 number, since 2×1110221209973² (a number of 25 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 (1110221209963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8210636 + ... + 8344757.

It is an arithmetic number, because the mean of its divisors is an integer number (277559458107).

Almost surely, 2^{1110221209973} is an apocalyptic number.

It is an amenable number.

1110221209973 is a deficient number, since it is larger than the sum of its proper divisors (16622455).

1110221209973 is an equidigital number, since it uses as much as digits as its factorization.

1110221209973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16622454.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 1110221209973 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, two hundred nine thousand, nine hundred seventy-three".