1020121000229 has 2 divisors, whose sum is σ = 1020121000230. Its totient is φ = 1020121000228.

The previous prime is 1020121000219. The next prime is 1020121000277. The reversal of 1020121000229 is 9220001210201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623945169604 + 396175830625 = 789902^2 + 629425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020121000229 - 2⁸ = 1020120999973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020121000229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020121000219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510060500114 + 510060500115.

It is an arithmetic number, because the mean of its divisors is an integer number (510060500115).

Almost surely, 2^{1020121000229} is an apocalyptic number.

It is an amenable number.

1020121000229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020121000229 is an equidigital number, since it uses as much as digits as its factorization.

1020121000229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1020121000229 in words is "one trillion, twenty billion, one hundred twenty-one million, two hundred twenty-nine", and thus it is an aban number.