111221002209 has 8 divisors (see below), whose sum is σ = 148496984512. Its totient is φ = 74046177360.

The previous prime is 111221002201. The next prime is 111221002213. The reversal of 111221002209 is 902200122111.

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

It is not a de Polignac number, because 111221002209 - 2³ = 111221002201 is a prime.

It is a super-2 number, since 2×111221002209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221002201) 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, 25286797 + ... + 25291194.

It is an arithmetic number, because the mean of its divisors is an integer number (18562123064).

Almost surely, 2^111221002209 is an apocalyptic number.

It is an amenable number.

111221002209 is a deficient number, since it is larger than the sum of its proper divisors (37275982303).

111221002209 is an equidigital number, since it uses as much as digits as its factorization.

111221002209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50578727.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 111221002209 in words is "one hundred eleven billion, two hundred twenty-one million, two thousand, two hundred nine".