40621242221041 has 4 divisors (see below), whose sum is σ = 40622264616052. Its totient is φ = 40620219826032.

The previous prime is 40621242220981. The next prime is 40621242221173. The reversal of 40621242221041 is 14012224212604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34973870204641 + 5647372016400 = 5913871^2 + 2376420^2 .

It is a cyclic number.

It is not a de Polignac number, because 40621242221041 - 2¹³ = 40621242212849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40621242220994 and 40621242221012.

It is not an unprimeable number, because it can be changed into a prime (40621242291041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511137906 + ... + 511217371.

It is an arithmetic number, because the mean of its divisors is an integer number (10155566154013).

Almost surely, 2^{40621242221041} is an apocalyptic number.

It is an amenable number.

40621242221041 is a deficient number, since it is larger than the sum of its proper divisors (1022395011).

40621242221041 is a wasteful number, since it uses less digits than its factorization.

40621242221041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022395010.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 40621242221041 its reverse (14012224212604), we get a palindrome (54633466433645).

The spelling of 40621242221041 in words is "forty trillion, six hundred twenty-one billion, two hundred forty-two million, two hundred twenty-one thousand, forty-one".