110221211122009 has 4 divisors (see below), whose sum is σ = 118699765823716. Its totient is φ = 101742656420304.

The previous prime is 110221211121991. The next prime is 110221211122027. The reversal of 110221211122009 is 900221112122011.

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

It is an interprime number because it is at equal distance from previous prime (110221211121991) and next prime (110221211122027).

It can be written as a sum of positive squares in 2 ways, for example, as 59453306096409 + 50767905025600 = 7710597^2 + 7125160^2 .

It is a cyclic number.

It is not a de Polignac number, because 110221211122009 - 2⁵ = 110221211121977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110221211125009) 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, 4239277350834 + ... + 4239277350859.

It is an arithmetic number, because the mean of its divisors is an integer number (29674941455929).

Almost surely, 2^{110221211122009} is an apocalyptic number.

It is an amenable number.

110221211122009 is a deficient number, since it is larger than the sum of its proper divisors (8478554701707).

110221211122009 is an equidigital number, since it uses as much as digits as its factorization.

110221211122009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478554701706.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 110221211122009 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, nine".