10000220129 has 2 divisors, whose sum is σ = 10000220130. Its totient is φ = 10000220128.

The previous prime is 10000220123. The next prime is 10000220143. The reversal of 10000220129 is 92102200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9477411904 + 522808225 = 97352^2 + 22865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10000220129 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000220123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000110064 + 5000110065.

It is an arithmetic number, because the mean of its divisors is an integer number (5000110065).

Almost surely, 2^10000220129 is an apocalyptic number.

It is an amenable number.

10000220129 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000220129 is an equidigital number, since it uses as much as digits as its factorization.

10000220129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 10000220129 in words is "ten billion, two hundred twenty thousand, one hundred twenty-nine".