40621242221023 has 4 divisors (see below), whose sum is σ = 41719113632440. Its totient is φ = 39523370809608.

The previous prime is 40621242220981. The next prime is 40621242221173. The reversal of 40621242221023 is 32012224212604.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40621242221023 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 (40621242221323) 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, 548935705653 + ... + 548935705726.

It is an arithmetic number, because the mean of its divisors is an integer number (10429778408110).

Almost surely, 2^{40621242221023} is an apocalyptic number.

40621242221023 is a deficient number, since it is larger than the sum of its proper divisors (1097871411417).

40621242221023 is a wasteful number, since it uses less digits than its factorization.

40621242221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097871411416.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 40621242221023 its reverse (32012224212604), we get a palindrome (72633466433627).

The spelling of 40621242221023 in words is "forty trillion, six hundred twenty-one billion, two hundred forty-two million, two hundred twenty-one thousand, twenty-three".