121222101200211 has 24 divisors (see below), whose sum is σ = 191058914691840. Its totient is φ = 73451682284400.

The previous prime is 121222101200203. The next prime is 121222101200227. The reversal of 121222101200211 is 112002101222121.

121222101200211 is a `hidden beast` number, since 1 + 2 + 122 + 210 + 120 + 0 + 211 = 666.

It is not a de Polignac number, because 121222101200211 - 2³ = 121222101200203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222101200411) 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 23 ways as a sum of consecutive naturals, for example, 135032335 + ... + 135927096.

It is an arithmetic number, because the mean of its divisors is an integer number (7960788112160).

Almost surely, 2^{121222101200211} is an apocalyptic number.

121222101200211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121222101200211 is a deficient number, since it is larger than the sum of its proper divisors (69836813491629).

121222101200211 is a wasteful number, since it uses less digits than its factorization.

121222101200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270963967 (or 270963964 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121222101200211 its reverse (112002101222121), we get a palindrome (233224202422332).

The spelling of 121222101200211 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, two hundred thousand, two hundred eleven".