1012121011229 has 2 divisors, whose sum is σ = 1012121011230. Its totient is φ = 1012121011228.

The previous prime is 1012121011201. The next prime is 1012121011259. The reversal of 1012121011229 is 9221101212101.

It is a happy number.

1012121011229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003693404025 + 8427607204 = 1001845^2 + 91802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012121011229 - 2³² = 1007826043933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012121011259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060505614 + 506060505615.

It is an arithmetic number, because the mean of its divisors is an integer number (506060505615).

Almost surely, 2^{1012121011229} is an apocalyptic number.

It is an amenable number.

1012121011229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012121011229 is an equidigital number, since it uses as much as digits as its factorization.

1012121011229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1012121011229 in words is "one trillion, twelve billion, one hundred twenty-one million, eleven thousand, two hundred twenty-nine".