21032101229 has 2 divisors, whose sum is σ = 21032101230. Its totient is φ = 21032101228.

The previous prime is 21032101193. The next prime is 21032101261. The reversal of 21032101229 is 92210123012.

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., 20725921225 + 306180004 = 143965^2 + 17498^2 .

It is a cyclic number.

It is not a de Polignac number, because 21032101229 - 2¹² = 21032097133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032109229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516050614 + 10516050615.

It is an arithmetic number, because the mean of its divisors is an integer number (10516050615).

Almost surely, 2^21032101229 is an apocalyptic number.

It is an amenable number.

21032101229 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032101229 is an equidigital number, since it uses as much as digits as its factorization.

21032101229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 21032101229 in words is "twenty-one billion, thirty-two million, one hundred one thousand, two hundred twenty-nine".