121212202002211 has 16 divisors (see below), whose sum is σ = 124871465553120. Its totient is φ = 117607950570240.

The previous prime is 121212202002193. The next prime is 121212202002257. The reversal of 121212202002211 is 112200202212121.

It is a cyclic number.

It is not a de Polignac number, because 121212202002211 - 2¹⁷ = 121212201871139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212202002811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17126325 + ... + 23145958.

It is an arithmetic number, because the mean of its divisors is an integer number (7804466597070).

Almost surely, 2^{121212202002211} is an apocalyptic number.

121212202002211 is a deficient number, since it is larger than the sum of its proper divisors (3659263550909).

121212202002211 is a wasteful number, since it uses less digits than its factorization.

121212202002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40272966.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212202002211 its reverse (112200202212121), we get a palindrome (233412404214332).

The spelling of 121212202002211 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred two million, two thousand, two hundred eleven".