2012444555401 has 6 divisors (see below), whose sum is σ = 2341006931850. Its totient is φ = 1724952476016.

The previous prime is 2012444555383. The next prime is 2012444555419. The reversal of 2012444555401 is 1045554442102.

It is an interprime number because it is at equal distance from previous prime (2012444555383) and next prime (2012444555419).

It can be written as a sum of positive squares in only one way, i.e., 1808086311801 + 204358243600 = 1344651^2 + 452060^2 .

It is not a de Polignac number, because 2012444555401 - 2¹⁹ = 2012444031113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012444555431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20535148476 + ... + 20535148573.

It is an arithmetic number, because the mean of its divisors is an integer number (390167821975).

Almost surely, 2^{2012444555401} is an apocalyptic number.

It is an amenable number.

2012444555401 is a deficient number, since it is larger than the sum of its proper divisors (328562376449).

2012444555401 is an equidigital number, since it uses as much as digits as its factorization.

2012444555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41070297063 (or 41070297056 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 2012444555401 its reverse (1045554442102), we get a palindrome (3057998997503).

The spelling of 2012444555401 in words is "two trillion, twelve billion, four hundred forty-four million, five hundred fifty-five thousand, four hundred one".