42222941 has 2 divisors, whose sum is σ = 42222942. Its totient is φ = 42222940.

The previous prime is 42222923. The next prime is 42222953. The reversal of 42222941 is 14922224.

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., 38800441 + 3422500 = 6229^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 42222941 - 2⁶ = 42222877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42222941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111470 + 21111471.

It is an arithmetic number, because the mean of its divisors is an integer number (21111471).

Almost surely, 2^42222941 is an apocalyptic number.

It is an amenable number.

42222941 is a deficient number, since it is larger than the sum of its proper divisors (1).

42222941 is an equidigital number, since it uses as much as digits as its factorization.

42222941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

The square root of 42222941 is about 6497.9182050869. The cubic root of 42222941 is about 348.2166182283.

The spelling of 42222941 in words is "forty-two million, two hundred twenty-two thousand, nine hundred forty-one".