10344011221 has 4 divisors (see below), whose sum is σ = 10344475372. Its totient is φ = 10343547072.

The previous prime is 10344011213. The next prime is 10344011231. The reversal of 10344011221 is 12211044301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8199302500 + 2144708721 = 90550^2 + 46311^2 .

It is a cyclic number.

It is not a de Polignac number, because 10344011221 - 2³ = 10344011213 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 (10344011231) 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, 196866 + ... + 243811.

It is an arithmetic number, because the mean of its divisors is an integer number (2586118843).

Almost surely, 2^10344011221 is an apocalyptic number.

It is an amenable number.

10344011221 is a deficient number, since it is larger than the sum of its proper divisors (464151).

10344011221 is an equidigital number, since it uses as much as digits as its factorization.

10344011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464150.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10344011221 its reverse (12211044301), we get a palindrome (22555055522).

It can be divided in two parts, 1034401 and 1221, that multiplied together give a palindrome (1263003621).

The spelling of 10344011221 in words is "ten billion, three hundred forty-four million, eleven thousand, two hundred twenty-one".