121001121020977 has 2 divisors, whose sum is σ = 121001121020978. Its totient is φ = 121001121020976.

The previous prime is 121001121020963. The next prime is 121001121021017. The reversal of 121001121020977 is 779020121100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107490468153121 + 13510652867856 = 10367761^2 + 3675684^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001121020977 - 2⁷ = 121001121020849 is a prime.

It is not a weakly prime, because it can be changed into another prime (121001121020917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500560510488 + 60500560510489.

It is an arithmetic number, because the mean of its divisors is an integer number (60500560510489).

Almost surely, 2^{121001121020977} is an apocalyptic number.

It is an amenable number.

121001121020977 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001121020977 is an equidigital number, since it uses as much as digits as its factorization.

121001121020977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 34.

The spelling of 121001121020977 in words is "one hundred twenty-one trillion, one billion, one hundred twenty-one million, twenty thousand, nine hundred seventy-seven".