121221201100969 has 2 divisors, whose sum is σ = 121221201100970. Its totient is φ = 121221201100968.

The previous prime is 121221201100907. The next prime is 121221201101053. The reversal of 121221201100969 is 969001102122121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104144372163225 + 17076828937744 = 10205115^2 + 4132412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121221201100969 is a prime.

It is a super-2 number, since 2×121221201100969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121221207100969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610600550484 + 60610600550485.

It is an arithmetic number, because the mean of its divisors is an integer number (60610600550485).

Almost surely, 2^{121221201100969} is an apocalyptic number.

It is an amenable number.

121221201100969 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221201100969 is an equidigital number, since it uses as much as digits as its factorization.

121221201100969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 121221201100969 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred one million, one hundred thousand, nine hundred sixty-nine".