40111122401 has 4 divisors (see below), whose sum is σ = 45841282752. Its totient is φ = 34380962052.

The previous prime is 40111122397. The next prime is 40111122407. The reversal of 40111122401 is 10422111104.

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 40111122401 - 2² = 40111122397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40111122401.

It is not an unprimeable number, because it can be changed into a prime (40111122407) 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, 2865080165 + ... + 2865080178.

It is an arithmetic number, because the mean of its divisors is an integer number (11460320688).

Almost surely, 2^40111122401 is an apocalyptic number.

It is an amenable number.

40111122401 is a deficient number, since it is larger than the sum of its proper divisors (5730160351).

40111122401 is an equidigital number, since it uses as much as digits as its factorization.

40111122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730160350.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 40111122401 its reverse (10422111104), we get a palindrome (50533233505).

The spelling of 40111122401 in words is "forty billion, one hundred eleven million, one hundred twenty-two thousand, four hundred one".