1212233240044 has 48 divisors (see below), whose sum is σ = 2253558384000. Its totient is φ = 568948375296.

The previous prime is 1212233239967. The next prime is 1212233240047. The reversal of 1212233240044 is 4400423322121.

It is a junction number, because it is equal to n+sod(n) for n = 1212233239994 and 1212233240021.

It is not an unprimeable number, because it can be changed into a prime (1212233240047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28310419 + ... + 28353205.

It is an arithmetic number, because the mean of its divisors is an integer number (46949133000).

Almost surely, 2^{1212233240044} is an apocalyptic number.

It is an amenable number.

1212233240044 is a deficient number, since it is larger than the sum of its proper divisors (1041325143956).

1212233240044 is a wasteful number, since it uses less digits than its factorization.

1212233240044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46222 (or 46220 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1212233240044 its reverse (4400423322121), we get a palindrome (5612656562165).

The spelling of 1212233240044 in words is "one trillion, two hundred twelve billion, two hundred thirty-three million, two hundred forty thousand, forty-four".