40024021221401 has 4 divisors (see below), whose sum is σ = 45741738538752. Its totient is φ = 34306303904052.

The previous prime is 40024021221277. The next prime is 40024021221479. The reversal of 40024021221401 is 10412212042004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40024021221401 - 2²⁶ = 40023954112537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40024020221401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2858858658665 + ... + 2858858658678.

It is an arithmetic number, because the mean of its divisors is an integer number (11435434634688).

Almost surely, 2^{40024021221401} is an apocalyptic number.

It is an amenable number.

40024021221401 is a deficient number, since it is larger than the sum of its proper divisors (5717717317351).

40024021221401 is an equidigital number, since it uses as much as digits as its factorization.

40024021221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717717317350.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 40024021221401 its reverse (10412212042004), we get a palindrome (50436233263405).

The spelling of 40024021221401 in words is "forty trillion, twenty-four billion, twenty-one million, two hundred twenty-one thousand, four hundred one".