40220003230021 has 2 divisors, whose sum is σ = 40220003230022. Its totient is φ = 40220003230020.

The previous prime is 40220003229983. The next prime is 40220003230093. The reversal of 40220003230021 is 12003230002204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34761990564900 + 5458012665121 = 5895930^2 + 2336239^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220003230021 - 2¹¹ = 40220003227973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40220003270021) 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, 20110001615010 + 20110001615011.

It is an arithmetic number, because the mean of its divisors is an integer number (20110001615011).

Almost surely, 2^{40220003230021} is an apocalyptic number.

It is an amenable number.

40220003230021 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220003230021 is an equidigital number, since it uses as much as digits as its factorization.

40220003230021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40220003230021 its reverse (12003230002204), we get a palindrome (52223233232225).

The spelling of 40220003230021 in words is "forty trillion, two hundred twenty billion, three million, two hundred thirty thousand, twenty-one".