41442421021 has 16 divisors (see below), whose sum is σ = 44003547648. Its totient is φ = 38961172800.

The previous prime is 41442421001. The next prime is 41442421051. The reversal of 41442421021 is 12012424414.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 41442421021 - 2¹³ = 41442412829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41442421001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721326 + ... + 776656.

It is an arithmetic number, because the mean of its divisors is an integer number (2750221728).

Almost surely, 2^41442421021 is an apocalyptic number.

It is an amenable number.

41442421021 is a deficient number, since it is larger than the sum of its proper divisors (2561126627).

41442421021 is a wasteful number, since it uses less digits than its factorization.

41442421021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56052.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 41442421021 its reverse (12012424414), we get a palindrome (53454845435).

The spelling of 41442421021 in words is "forty-one billion, four hundred forty-two million, four hundred twenty-one thousand, twenty-one".