40221144601 has 4 divisors (see below), whose sum is σ = 43877612304. Its totient is φ = 36564676900.

The previous prime is 40221144599. The next prime is 40221144617. The reversal of 40221144601 is 10644112204.

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 40221144601 - 2¹ = 40221144599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40221144641) 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, 1828233835 + ... + 1828233856.

It is an arithmetic number, because the mean of its divisors is an integer number (10969403076).

Almost surely, 2^40221144601 is an apocalyptic number.

It is an amenable number.

40221144601 is a deficient number, since it is larger than the sum of its proper divisors (3656467703).

40221144601 is a wasteful number, since it uses less digits than its factorization.

40221144601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656467702.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 40221144601 its reverse (10644112204), we get a palindrome (50865256805).

The spelling of 40221144601 in words is "forty billion, two hundred twenty-one million, one hundred forty-four thousand, six hundred one".