121110120997 has 2 divisors, whose sum is σ = 121110120998. Its totient is φ = 121110120996.

The previous prime is 121110120977. The next prime is 121110121057. The reversal of 121110120997 is 799021011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115617680676 + 5492440321 = 340026^2 + 74111^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110120997 - 2¹⁹ = 121109596709 is a prime.

It is a super-2 number, since 2×121110120997² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110120977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555060498 + 60555060499.

It is an arithmetic number, because the mean of its divisors is an integer number (60555060499).

Almost surely, 2^121110120997 is an apocalyptic number.

It is an amenable number.

121110120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110120997 is an equidigital number, since it uses as much as digits as its factorization.

121110120997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 121110120997 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, nine hundred ninety-seven".