44212440121 has 2 divisors, whose sum is σ = 44212440122. Its totient is φ = 44212440120.

The previous prime is 44212440109. The next prime is 44212440131. The reversal of 44212440121 is 12104421244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28478250025 + 15734190096 = 168755^2 + 125436^2 .

It is a cyclic number.

It is not a de Polignac number, because 44212440121 - 2¹¹ = 44212438073 is a prime.

It is a super-2 number, since 2×44212440121² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44212440131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22106220060 + 22106220061.

It is an arithmetic number, because the mean of its divisors is an integer number (22106220061).

Almost surely, 2^44212440121 is an apocalyptic number.

It is an amenable number.

44212440121 is a deficient number, since it is larger than the sum of its proper divisors (1).

44212440121 is an equidigital number, since it uses as much as digits as its factorization.

44212440121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 44212440121 its reverse (12104421244), we get a palindrome (56316861365).

The spelling of 44212440121 in words is "forty-four billion, two hundred twelve million, four hundred forty thousand, one hundred twenty-one".