43361222401 has 16 divisors (see below), whose sum is σ = 49963639680. Its totient is φ = 36861298560.

The previous prime is 43361222357. The next prime is 43361222413. The reversal of 43361222401 is 10422216334.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43361222401 - 2⁹ = 43361221889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43361222401.

It is not an unprimeable number, because it can be changed into a prime (43361228401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043146 + ... + 1083916.

It is an arithmetic number, because the mean of its divisors is an integer number (3122727480).

Almost surely, 2^43361222401 is an apocalyptic number.

It is an amenable number.

43361222401 is a deficient number, since it is larger than the sum of its proper divisors (6602417279).

43361222401 is a wasteful number, since it uses less digits than its factorization.

43361222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42024.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 43361222401 its reverse (10422216334), we get a palindrome (53783438735).

The spelling of 43361222401 in words is "forty-three billion, three hundred sixty-one million, two hundred twenty-two thousand, four hundred one".