344401123221 has 12 divisors (see below), whose sum is σ = 509037319648. Its totient is φ = 224261196264.

The previous prime is 344401123219. The next prime is 344401123237. The reversal of 344401123221 is 122321104443.

344401123221 is a `hidden beast` number, since 3 + 4 + 4 + 401 + 1 + 232 + 21 = 666.

It is not a de Polignac number, because 344401123221 - 2¹ = 344401123219 is a prime.

It is a super-2 number, since 2×344401123221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344401125221) 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 11 ways as a sum of consecutive naturals, for example, 444962305 + ... + 444963078.

Almost surely, 2^344401123221 is an apocalyptic number.

It is an amenable number.

344401123221 is a deficient number, since it is larger than the sum of its proper divisors (164636196427).

344401123221 is a wasteful number, since it uses less digits than its factorization.

344401123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889925432 (or 889925429 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 344401123221 its reverse (122321104443), we get a palindrome (466722227664).

The spelling of 344401123221 in words is "three hundred forty-four billion, four hundred one million, one hundred twenty-three thousand, two hundred twenty-one".