121200222100211 has 2 divisors, whose sum is σ = 121200222100212. Its totient is φ = 121200222100210.

The previous prime is 121200222100159. The next prime is 121200222100231. The reversal of 121200222100211 is 112001222002121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121200222100211 - 2⁴² = 116802175589107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121200222100211.

It is not a weakly prime, because it can be changed into another prime (121200222100231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600111050105 + 60600111050106.

It is an arithmetic number, because the mean of its divisors is an integer number (60600111050106).

Almost surely, 2^{121200222100211} is an apocalyptic number.

121200222100211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200222100211 is an equidigital number, since it uses as much as digits as its factorization.

121200222100211 is an evil number, because the sum of its binary digits is even.

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

Adding to 121200222100211 its reverse (112001222002121), we get a palindrome (233201444102332).

The spelling of 121200222100211 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, one hundred thousand, two hundred eleven".