2042211421 has 2 divisors, whose sum is σ = 2042211422. Its totient is φ = 2042211420.

The previous prime is 2042211403. The next prime is 2042211439. The reversal of 2042211421 is 1241122402.

It is a balanced prime because it is at equal distance from previous prime (2042211403) and next prime (2042211439).

It can be written as a sum of positive squares in only one way, i.e., 1643410521 + 398800900 = 40539^2 + 19970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042211421 - 2⁷ = 2042211293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042211481) 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, 1021105710 + 1021105711.

It is an arithmetic number, because the mean of its divisors is an integer number (1021105711).

Almost surely, 2^2042211421 is an apocalyptic number.

It is an amenable number.

2042211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042211421 is an equidigital number, since it uses as much as digits as its factorization.

2042211421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2042211421 is about 45190.8333735947. The cubic root of 2042211421 is about 1268.7232546927.

Adding to 2042211421 its reverse (1241122402), we get a palindrome (3283333823).

The spelling of 2042211421 in words is "two billion, forty-two million, two hundred eleven thousand, four hundred twenty-one".