10343120221 has 4 divisors (see below), whose sum is σ = 11820708832. Its totient is φ = 8865531612.

The previous prime is 10343120201. The next prime is 10343120237. The reversal of 10343120221 is 12202134301.

It is a happy number.

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 not a de Polignac number, because 10343120221 - 2¹⁷ = 10342989149 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 (10343120201) 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, 738794295 + ... + 738794308.

It is an arithmetic number, because the mean of its divisors is an integer number (2955177208).

Almost surely, 2^10343120221 is an apocalyptic number.

It is an amenable number.

10343120221 is a deficient number, since it is larger than the sum of its proper divisors (1477588611).

10343120221 is an equidigital number, since it uses as much as digits as its factorization.

10343120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477588610.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10343120221 its reverse (12202134301), we get a palindrome (22545254522).

The spelling of 10343120221 in words is "ten billion, three hundred forty-three million, one hundred twenty thousand, two hundred twenty-one".