1012121478833 has 2 divisors, whose sum is σ = 1012121478834. Its totient is φ = 1012121478832.

The previous prime is 1012121478799. The next prime is 1012121478839. The reversal of 1012121478833 is 3388741212101.

1012121478833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727255900849 + 284865577984 = 852793^2 + 533728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012121478833 - 2¹⁴ = 1012121462449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012121478839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060739416 + 506060739417.

It is an arithmetic number, because the mean of its divisors is an integer number (506060739417).

Almost surely, 2^{1012121478833} is an apocalyptic number.

It is an amenable number.

1012121478833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012121478833 is an equidigital number, since it uses as much as digits as its factorization.

1012121478833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 1012121478833 in words is "one trillion, twelve billion, one hundred twenty-one million, four hundred seventy-eight thousand, eight hundred thirty-three".