10142532221 has 2 divisors, whose sum is σ = 10142532222. Its totient is φ = 10142532220.

The previous prime is 10142532217. The next prime is 10142532223. The reversal of 10142532221 is 12223524101.

10142532221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5735032900 + 4407499321 = 75730^2 + 66389^2 .

It is a cyclic number.

It is not a de Polignac number, because 10142532221 - 2² = 10142532217 is a prime.

Together with 10142532223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10142532223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5071266110 + 5071266111.

It is an arithmetic number, because the mean of its divisors is an integer number (5071266111).

Almost surely, 2^10142532221 is an apocalyptic number.

It is an amenable number.

10142532221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10142532221 is an equidigital number, since it uses as much as digits as its factorization.

10142532221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 10142532221 in words is "ten billion, one hundred forty-two million, five hundred thirty-two thousand, two hundred twenty-one".