11000121222211 has 4 divisors (see below), whose sum is σ = 12000132242424. Its totient is φ = 10000110202000.

The previous prime is 11000121222191. The next prime is 11000121222217. The reversal of 11000121222211 is 11222212100011.

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 11000121222211 - 2¹⁵ = 11000121189443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000121222217) 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, 500005510090 + ... + 500005510111.

It is an arithmetic number, because the mean of its divisors is an integer number (3000033060606).

Almost surely, 2^{11000121222211} is an apocalyptic number.

11000121222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11000121222211 is a deficient number, since it is larger than the sum of its proper divisors (1000011020213).

11000121222211 is a wasteful number, since it uses less digits than its factorization.

11000121222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000011020212.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11000121222211 its reverse (11222212100011), we get a palindrome (22222333322222).

The spelling of 11000121222211 in words is "eleven trillion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".