121020010097 has 4 divisors (see below), whose sum is σ = 138308582976. Its totient is φ = 103731437220.

The previous prime is 121020010093. The next prime is 121020010103. The reversal of 121020010097 is 790010020121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790010020121 = 7 ⋅112858574303.

It is a cyclic number.

It is not a de Polignac number, because 121020010097 - 2² = 121020010093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020010093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8644286429 + ... + 8644286442.

It is an arithmetic number, because the mean of its divisors is an integer number (34577145744).

Almost surely, 2^121020010097 is an apocalyptic number.

It is an amenable number.

121020010097 is a deficient number, since it is larger than the sum of its proper divisors (17288572879).

121020010097 is an equidigital number, since it uses as much as digits as its factorization.

121020010097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17288572878.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 121020010097 in words is "one hundred twenty-one billion, twenty million, ten thousand, ninety-seven".