121100201149 has 2 divisors, whose sum is σ = 121100201150. Its totient is φ = 121100201148.

The previous prime is 121100201129. The next prime is 121100201309. The reversal of 121100201149 is 941102001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95631233049 + 25468968100 = 309243^2 + 159590^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100201149 - 2¹⁹ = 121099676861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100201129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550100574 + 60550100575.

It is an arithmetic number, because the mean of its divisors is an integer number (60550100575).

Almost surely, 2^121100201149 is an apocalyptic number.

It is an amenable number.

121100201149 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100201149 is an equidigital number, since it uses as much as digits as its factorization.

121100201149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 121100201149 in words is "one hundred twenty-one billion, one hundred million, two hundred one thousand, one hundred forty-nine".