121200211049 has 2 divisors, whose sum is σ = 121200211050. Its totient is φ = 121200211048.

The previous prime is 121200211003. The next prime is 121200211109. The reversal of 121200211049 is 940112002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119629515625 + 1570695424 = 345875^2 + 39632^2 .

It is a cyclic number.

It is not a de Polignac number, because 121200211049 - 2²⁰ = 121199162473 is a prime.

It is not a weakly prime, because it can be changed into another prime (121200214049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600105524 + 60600105525.

It is an arithmetic number, because the mean of its divisors is an integer number (60600105525).

Almost surely, 2^121200211049 is an apocalyptic number.

It is an amenable number.

121200211049 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200211049 is an equidigital number, since it uses as much as digits as its factorization.

121200211049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 121200211049 in words is "one hundred twenty-one billion, two hundred million, two hundred eleven thousand, forty-nine".