1099012211 has 4 divisors (see below), whose sum is σ = 1198922424. Its totient is φ = 999102000.

The previous prime is 1099012199. The next prime is 1099012241. The reversal of 1099012211 is 1122109901.

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

It is a cyclic number.

It is not a de Polignac number, because 1099012211 - 2³⁰ = 25270387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099012241) 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, 49955090 + ... + 49955111.

It is an arithmetic number, because the mean of its divisors is an integer number (299730606).

Almost surely, 2^1099012211 is an apocalyptic number.

1099012211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1099012211 is a deficient number, since it is larger than the sum of its proper divisors (99910213).

1099012211 is an equidigital number, since it uses as much as digits as its factorization.

1099012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99910212.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 1099012211 is about 33151.3530794748. The cubic root of 1099012211 is about 1031.9710305125.

The spelling of 1099012211 in words is "one billion, ninety-nine million, twelve thousand, two hundred eleven".