121053252209 has 2 divisors, whose sum is σ = 121053252210. Its totient is φ = 121053252208.

The previous prime is 121053252191. The next prime is 121053252239. The reversal of 121053252209 is 902252350121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111182233600 + 9871018609 = 333440^2 + 99353^2 .

It is a cyclic number.

It is not a de Polignac number, because 121053252209 - 2¹⁶ = 121053186673 is a prime.

It is not a weakly prime, because it can be changed into another prime (121053252239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60526626104 + 60526626105.

It is an arithmetic number, because the mean of its divisors is an integer number (60526626105).

Almost surely, 2^121053252209 is an apocalyptic number.

It is an amenable number.

121053252209 is a deficient number, since it is larger than the sum of its proper divisors (1).

121053252209 is an equidigital number, since it uses as much as digits as its factorization.

121053252209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 121053252209 in words is "one hundred twenty-one billion, fifty-three million, two hundred fifty-two thousand, two hundred nine".