42344410401221 has 8 divisors (see below), whose sum is σ = 42733838778840. Its totient is φ = 41954999251968.

The previous prime is 42344410401179. The next prime is 42344410401233. The reversal of 42344410401221 is 12210401444324.

It can be written as a sum of positive squares in 4 ways, for example, as 4993611460321 + 37350798940900 = 2234639^2 + 6111530^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42344410401221 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 (42344410403221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657365 + ... + 9226101.

It is an arithmetic number, because the mean of its divisors is an integer number (5341729847355).

Almost surely, 2^{42344410401221} is an apocalyptic number.

It is an amenable number.

42344410401221 is a deficient number, since it is larger than the sum of its proper divisors (389428377619).

42344410401221 is a wasteful number, since it uses less digits than its factorization.

42344410401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614183.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 42344410401221 its reverse (12210401444324), we get a palindrome (54554811845545).

The spelling of 42344410401221 in words is "forty-two trillion, three hundred forty-four billion, four hundred ten million, four hundred one thousand, two hundred twenty-one".