41012021021 has 2 divisors, whose sum is σ = 41012021022. Its totient is φ = 41012021020.

The previous prime is 41012020979. The next prime is 41012021069. The reversal of 41012021021 is 12012021014.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38942680921 + 2069340100 = 197339^2 + 45490^2 .

It is a cyclic number.

It is not a de Polignac number, because 41012021021 - 2¹⁸ = 41011758877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41012020987 and 41012021005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41012021521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20506010510 + 20506010511.

It is an arithmetic number, because the mean of its divisors is an integer number (20506010511).

Almost surely, 2^41012021021 is an apocalyptic number.

It is an amenable number.

41012021021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41012021021 is an equidigital number, since it uses as much as digits as its factorization.

41012021021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 41012021021 its reverse (12012021014), we get a palindrome (53024042035).

The spelling of 41012021021 in words is "forty-one billion, twelve million, twenty-one thousand, twenty-one".