122121002149 has 2 divisors, whose sum is σ = 122121002150. Its totient is φ = 122121002148.

The previous prime is 122121002083. The next prime is 122121002167. The reversal of 122121002149 is 941200121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69132184900 + 52988817249 = 262930^2 + 230193^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121002149 - 2¹⁵ = 122120969381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121002849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060501074 + 61060501075.

It is an arithmetic number, because the mean of its divisors is an integer number (61060501075).

Almost surely, 2^122121002149 is an apocalyptic number.

It is an amenable number.

122121002149 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121002149 is an equidigital number, since it uses as much as digits as its factorization.

122121002149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 122121002149 in words is "one hundred twenty-two billion, one hundred twenty-one million, two thousand, one hundred forty-nine".