1042334221 has 2 divisors, whose sum is σ = 1042334222. Its totient is φ = 1042334220.

The previous prime is 1042334203. The next prime is 1042334231. The reversal of 1042334221 is 1224332401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042321225 + 12996 = 32285^2 + 114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042334221 - 2⁹ = 1042333709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042334192 and 1042334201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042334201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521167110 + 521167111.

It is an arithmetic number, because the mean of its divisors is an integer number (521167111).

Almost surely, 2^1042334221 is an apocalyptic number.

It is an amenable number.

1042334221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042334221 is an equidigital number, since it uses as much as digits as its factorization.

1042334221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1042334221 is about 32285.2012693122. The cubic root of 1042334221 is about 1013.9168303704.

Adding to 1042334221 its reverse (1224332401), we get a palindrome (2266666622).

It can be divided in two parts, 10423 and 34221, that added together give a palindrome (44644).

The spelling of 1042334221 in words is "one billion, forty-two million, three hundred thirty-four thousand, two hundred twenty-one".