121210222112211 has 8 divisors (see below), whose sum is σ = 161624213971920. Its totient is φ = 80801522496992.

The previous prime is 121210222112159. The next prime is 121210222112261. The reversal of 121210222112211 is 112211222012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121210222112211 - 2¹⁷ = 121210221981139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121210222112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323007680 + ... + 1323099293.

It is an arithmetic number, because the mean of its divisors is an integer number (20203026746490).

Almost surely, 2^{121210222112211} is an apocalyptic number.

121210222112211 is a deficient number, since it is larger than the sum of its proper divisors (40413991859709).

121210222112211 is a wasteful number, since it uses less digits than its factorization.

121210222112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646122245.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121210222112211 its reverse (112211222012121), we get a palindrome (233421444124332).

The spelling of 121210222112211 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".