10142033221 has 2 divisors, whose sum is σ = 10142033222. Its totient is φ = 10142033220.

The previous prime is 10142033219. The next prime is 10142033243. The reversal of 10142033221 is 12233024101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8808761025 + 1333272196 = 93855^2 + 36514^2 .

It is a cyclic number.

It is not a de Polignac number, because 10142033221 - 2¹ = 10142033219 is a prime.

Together with 10142033219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10142033261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5071016610 + 5071016611.

It is an arithmetic number, because the mean of its divisors is an integer number (5071016611).

Almost surely, 2^10142033221 is an apocalyptic number.

It is an amenable number.

10142033221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10142033221 is an equidigital number, since it uses as much as digits as its factorization.

10142033221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10142033221 its reverse (12233024101), we get a palindrome (22375057322).

The spelling of 10142033221 in words is "ten billion, one hundred forty-two million, thirty-three thousand, two hundred twenty-one".