121122120997 has 2 divisors, whose sum is σ = 121122120998. Its totient is φ = 121122120996.

The previous prime is 121122120967. The next prime is 121122121019. The reversal of 121122120997 is 799021221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114406974081 + 6715146916 = 338241^2 + 81946^2 .

It is an emirp because it is prime and its reverse (799021221121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121122120997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121122120907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561060498 + 60561060499.

It is an arithmetic number, because the mean of its divisors is an integer number (60561060499).

Almost surely, 2^121122120997 is an apocalyptic number.

It is an amenable number.

121122120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122120997 is an equidigital number, since it uses as much as digits as its factorization.

121122120997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 121122120997 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, nine hundred ninety-seven".