121100002211 has 4 divisors (see below), whose sum is σ = 121118868624. Its totient is φ = 121081135800.

The previous prime is 121100002187. The next prime is 121100002229. The reversal of 121100002211 is 112200001121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100002211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121100002192 and 121100002201.

It is not an unprimeable number, because it can be changed into a prime (121100002811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9423575 + ... + 9436416.

It is an arithmetic number, because the mean of its divisors is an integer number (30279717156).

Almost surely, 2^121100002211 is an apocalyptic number.

121100002211 is a deficient number, since it is larger than the sum of its proper divisors (18866413).

121100002211 is an equidigital number, since it uses as much as digits as its factorization.

121100002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18866412.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121100002211 its reverse (112200001121), we get a palindrome (233300003332).

The spelling of 121100002211 in words is "one hundred twenty-one billion, one hundred million, two thousand, two hundred eleven".