1212144140044 has 24 divisors (see below), whose sum is σ = 2166444197568. Its totient is φ = 593160785280.

The previous prime is 1212144139993. The next prime is 1212144140083. The reversal of 1212144140044 is 4400414412121.

It is a junction number, because it is equal to n+sod(n) for n = 1212144139994 and 1212144140021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9799704 + ... + 9922624.

It is an arithmetic number, because the mean of its divisors is an integer number (90268508232).

Almost surely, 2^{1212144140044} is an apocalyptic number.

It is an amenable number.

1212144140044 is a deficient number, since it is larger than the sum of its proper divisors (954300057524).

1212144140044 is a wasteful number, since it uses less digits than its factorization.

1212144140044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175425 (or 175423 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 1212144140044 its reverse (4400414412121), we get a palindrome (5612558552165).

The spelling of 1212144140044 in words is "one trillion, two hundred twelve billion, one hundred forty-four million, one hundred forty thousand, forty-four".