2010121121977 has 2 divisors, whose sum is σ = 2010121121978. Its totient is φ = 2010121121976.

The previous prime is 2010121121969. The next prime is 2010121122083. The reversal of 2010121121977 is 7791211210102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2006347599936 + 3773522041 = 1416456^2 + 61429^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010121121977 - 2³ = 2010121121969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2010121121377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005060560988 + 1005060560989.

It is an arithmetic number, because the mean of its divisors is an integer number (1005060560989).

Almost surely, 2^{2010121121977} is an apocalyptic number.

It is an amenable number.

2010121121977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010121121977 is an equidigital number, since it uses as much as digits as its factorization.

2010121121977 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 2010121121977 in words is "two trillion, ten billion, one hundred twenty-one million, one hundred twenty-one thousand, nine hundred seventy-seven".