1243214122212 has 72 divisors (see below), whose sum is σ = 3155881549184. Its totient is φ = 412651267776.

The previous prime is 1243214122151. The next prime is 1243214122219. The reversal of 1243214122212 is 2122214123421.

1243214122212 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 21 + 412 + 221 + 2 = 666.

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 (1243214122219) 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, 14761173 + ... + 14845155.

Almost surely, 2^{1243214122212} is an apocalyptic number.

1243214122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243214122212 is an abundant number, since it is smaller than the sum of its proper divisors (1912667426972).

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

1243214122212 is a wasteful number, since it uses less digits than its factorization.

1243214122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85729 (or 85724 counting only the distinct ones).

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

Adding to 1243214122212 its reverse (2122214123421), we get a palindrome (3365428245633).

The spelling of 1243214122212 in words is "one trillion, two hundred forty-three billion, two hundred fourteen million, one hundred twenty-two thousand, two hundred twelve".