121120212149 has 2 divisors, whose sum is σ = 121120212150. Its totient is φ = 121120212148.

The previous prime is 121120212107. The next prime is 121120212193. The reversal of 121120212149 is 941212021121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113783433124 + 7336779025 = 337318^2 + 85655^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120212149 - 2⁸ = 121120211893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120292149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560106074 + 60560106075.

It is an arithmetic number, because the mean of its divisors is an integer number (60560106075).

Almost surely, 2^121120212149 is an apocalyptic number.

It is an amenable number.

121120212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120212149 is an equidigital number, since it uses as much as digits as its factorization.

121120212149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 121120212149 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred twelve thousand, one hundred forty-nine".