121200220012211 has 8 divisors (see below), whose sum is σ = 121223059881984. Its totient is φ = 121177381477320.

The previous prime is 121200220012169. The next prime is 121200220012229. The reversal of 121200220012211 is 112210022002121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200220012211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121200220012211.

It is not an unprimeable number, because it can be changed into a prime (121200220012111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191583326 + ... + 192214908.

It is an arithmetic number, because the mean of its divisors is an integer number (15152882485248).

Almost surely, 2^{121200220012211} is an apocalyptic number.

121200220012211 is a deficient number, since it is larger than the sum of its proper divisors (22839869773).

121200220012211 is an equidigital number, since it uses as much as digits as its factorization.

121200220012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667441.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121200220012211 its reverse (112210022002121), we get a palindrome (233410242014332).

The spelling of 121200220012211 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty million, twelve thousand, two hundred eleven".