1243124122212 has 48 divisors (see below), whose sum is σ = 3683330734720. Its totient is φ = 355178320416.

The previous prime is 1243124122199. The next prime is 1243124122241. The reversal of 1243124122212 is 2122214213421.

1243124122212 is a `hidden beast` number, since 1 + 2 + 4 + 31 + 2 + 412 + 2 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822171283 + ... + 822172794.

Almost surely, 2^{1243124122212} is an apocalyptic number.

1243124122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243124122212 is an abundant number, since it is smaller than the sum of its proper divisors (2440206612508).

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

1243124122212 is a wasteful number, since it uses less digits than its factorization.

1243124122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644344097 (or 1644344089 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 1243124122212 its reverse (2122214213421), we get a palindrome (3365338335633).

The spelling of 1243124122212 in words is "one trillion, two hundred forty-three billion, one hundred twenty-four million, one hundred twenty-two thousand, two hundred twelve".