1210344434221 has 4 divisors (see below), whose sum is σ = 1303447852252. Its totient is φ = 1117241016192.

The previous prime is 1210344434203. The next prime is 1210344434227. The reversal of 1210344434221 is 1224344430121.

It is a happy number.

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 640336044100 + 570008390121 = 800210^2 + 754989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210344434221 - 2¹¹ = 1210344432173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210344434227) 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, 46551708996 + ... + 46551709021.

It is an arithmetic number, because the mean of its divisors is an integer number (325861963063).

Almost surely, 2^{1210344434221} is an apocalyptic number.

It is an amenable number.

1210344434221 is a deficient number, since it is larger than the sum of its proper divisors (93103418031).

1210344434221 is an equidigital number, since it uses as much as digits as its factorization.

1210344434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93103418030.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1210344434221 its reverse (1224344430121), we get a palindrome (2434688864342).

The spelling of 1210344434221 in words is "one trillion, two hundred ten billion, three hundred forty-four million, four hundred thirty-four thousand, two hundred twenty-one".