1211031212124 has 12 divisors (see below), whose sum is σ = 2825739494984. Its totient is φ = 403677070704.

The previous prime is 1211031212113. The next prime is 1211031212147. The reversal of 1211031212124 is 4212121301121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1211031212124.

It is a congruent number.

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, 50459633827 + ... + 50459633850.

Almost surely, 2^{1211031212124} is an apocalyptic number.

It is an amenable number.

1211031212124 is an abundant number, since it is smaller than the sum of its proper divisors (1614708282860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211031212124 is a wasteful number, since it uses less digits than its factorization.

1211031212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100919267684 (or 100919267682 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1211031212124 its reverse (4212121301121), we get a palindrome (5423152513245).

The spelling of 1211031212124 in words is "one trillion, two hundred eleven billion, thirty-one million, two hundred twelve thousand, one hundred twenty-four".