121120020021149 has 2 divisors, whose sum is σ = 121120020021150. Its totient is φ = 121120020021148.

The previous prime is 121120020021083. The next prime is 121120020021163. The reversal of 121120020021149 is 941120020021121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88875305116900 + 32244714904249 = 9427370^2 + 5678443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120020021149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120020021449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560010010574 + 60560010010575.

It is an arithmetic number, because the mean of its divisors is an integer number (60560010010575).

Almost surely, 2^{121120020021149} is an apocalyptic number.

It is an amenable number.

121120020021149 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120020021149 is an equidigital number, since it uses as much as digits as its factorization.

121120020021149 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 121120020021149 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty million, twenty-one thousand, one hundred forty-nine".