1211241341412 has 72 divisors (see below), whose sum is σ = 3089512476960. Its totient is φ = 400087537920.

The previous prime is 1211241341411. The next prime is 1211241341503. The reversal of 1211241341412 is 2141431421121.

1211241341412 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 241 + 3 + 4 + 1 + 412 = 666.

It is a super-2 number, since 2×1211241341412² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1211241341411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20355039 + ... + 20414457.

Almost surely, 2^{1211241341412} is an apocalyptic number.

1211241341412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211241341412 is an abundant number, since it is smaller than the sum of its proper divisors (1878271135548).

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

1211241341412 is a wasteful number, since it uses less digits than its factorization.

1211241341412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64553 (or 64548 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

Adding to 1211241341412 its reverse (2141431421121), we get a palindrome (3352672762533).

The spelling of 1211241341412 in words is "one trillion, two hundred eleven billion, two hundred forty-one million, three hundred forty-one thousand, four hundred twelve".