101212021010129 has 2 divisors, whose sum is σ = 101212021010130. Its totient is φ = 101212021010128.

The previous prime is 101212021010059. The next prime is 101212021010197. The reversal of 101212021010129 is 921010120212101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73393231990225 + 27818789019904 = 8566985^2 + 5274352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101212021010129 is a prime.

It is not a weakly prime, because it can be changed into another prime (101212021010929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606010505064 + 50606010505065.

It is an arithmetic number, because the mean of its divisors is an integer number (50606010505065).

Almost surely, 2^{101212021010129} is an apocalyptic number.

It is an amenable number.

101212021010129 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212021010129 is an equidigital number, since it uses as much as digits as its factorization.

101212021010129 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 101212021010129 in words is "one hundred one trillion, two hundred twelve billion, twenty-one million, ten thousand, one hundred twenty-nine".