40221410303021 has 2 divisors, whose sum is σ = 40221410303022. Its totient is φ = 40221410303020.

The previous prime is 40221410302993. The next prime is 40221410303051. The reversal of 40221410303021 is 12030301412204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32989285576900 + 7232124726121 = 5743630^2 + 2689261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40221410303021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40221410303051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110705151510 + 20110705151511.

It is an arithmetic number, because the mean of its divisors is an integer number (20110705151511).

Almost surely, 2^{40221410303021} is an apocalyptic number.

It is an amenable number.

40221410303021 is a deficient number, since it is larger than the sum of its proper divisors (1).

40221410303021 is an equidigital number, since it uses as much as digits as its factorization.

40221410303021 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 23.

Adding to 40221410303021 its reverse (12030301412204), we get a palindrome (52251711715225).

The spelling of 40221410303021 in words is "forty trillion, two hundred twenty-one billion, four hundred ten million, three hundred three thousand, twenty-one".