121200212202211 has 4 divisors (see below), whose sum is σ = 121252657125424. Its totient is φ = 121147767279000.

The previous prime is 121200212202169. The next prime is 121200212202287. The reversal of 121200212202211 is 112202212002121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121200212202211 - 2¹¹ = 121200212200163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121200212200211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26222458140 + ... + 26222462761.

It is an arithmetic number, because the mean of its divisors is an integer number (30313164281356).

Almost surely, 2^{121200212202211} is an apocalyptic number.

121200212202211 is a deficient number, since it is larger than the sum of its proper divisors (52444923213).

121200212202211 is an equidigital number, since it uses as much as digits as its factorization.

121200212202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52444923212.

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

Adding to 121200212202211 its reverse (112202212002121), we get a palindrome (233402424204332).

The spelling of 121200212202211 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twelve million, two hundred two thousand, two hundred eleven".