1212031402444 has 12 divisors (see below), whose sum is σ = 2152712491384. Its totient is φ = 596970690624.

The previous prime is 1212031402397. The next prime is 1212031402451. The reversal of 1212031402444 is 4442041302121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261252349 + ... + 2261252884.

Almost surely, 2^{1212031402444} is an apocalyptic number.

It is an amenable number.

1212031402444 is a deficient number, since it is larger than the sum of its proper divisors (940681088940).

1212031402444 is a wasteful number, since it uses less digits than its factorization.

1212031402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522505304 (or 4522505302 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1212031402444 its reverse (4442041302121), we get a palindrome (5654072704565).

The spelling of 1212031402444 in words is "one trillion, two hundred twelve billion, thirty-one million, four hundred two thousand, four hundred forty-four".