1214440444121 has 4 divisors (see below), whose sum is σ = 1222175733732. Its totient is φ = 1206705154512.

The previous prime is 1214440444081. The next prime is 1214440444127.

1214440444121 is nontrivially palindromic in base 10.

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 566956291225 + 647484152896 = 752965^2 + 804664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214440444121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214440444127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867644570 + ... + 3867644883.

It is an arithmetic number, because the mean of its divisors is an integer number (305543933433).

Almost surely, 2^{1214440444121} is an apocalyptic number.

It is an amenable number.

1214440444121 is a deficient number, since it is larger than the sum of its proper divisors (7735289611).

1214440444121 is an equidigital number, since it uses as much as digits as its factorization.

1214440444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7735289610.

The product of its (nonzero) digits is 16384, while the sum is 32.

It can be divided in two parts, 1214440 and 444121, that added together give a palindrome (1658561).

The spelling of 1214440444121 in words is "one trillion, two hundred fourteen billion, four hundred forty million, four hundred forty-four thousand, one hundred twenty-one".