121110021212211 has 32 divisors (see below), whose sum is σ = 179690537203200. Its totient is φ = 80619368778720.

The previous prime is 121110021212207. The next prime is 121110021212249. The reversal of 121110021212211 is 112212120011121.

It is a happy number.

121110021212211 is a `hidden beast` number, since 1 + 211 + 10 + 0 + 21 + 212 + 211 = 666.

It is not a de Polignac number, because 121110021212211 - 2² = 121110021212207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121110021212311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51944445 + ... + 54225873.

It is an arithmetic number, because the mean of its divisors is an integer number (5615329287600).

Almost surely, 2^{121110021212211} is an apocalyptic number.

121110021212211 is a deficient number, since it is larger than the sum of its proper divisors (58580515990989).

121110021212211 is a wasteful number, since it uses less digits than its factorization.

121110021212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284376 (or 2284370 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121110021212211 its reverse (112212120011121), we get a palindrome (233322141223332).

The spelling of 121110021212211 in words is "one hundred twenty-one trillion, one hundred ten billion, twenty-one million, two hundred twelve thousand, two hundred eleven".