1213332212112 has 40 divisors (see below), whose sum is σ = 3136607893056. Its totient is φ = 404164542336.

The previous prime is 1213332212101. The next prime is 1213332212117. The reversal of 1213332212112 is 2112122333121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 (1213332212117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8665083 + ... + 8803994.

Almost surely, 2^{1213332212112} is an apocalyptic number.

1213332212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213332212112 is an abundant number, since it is smaller than the sum of its proper divisors (1923275680944).

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

1213332212112 is a wasteful number, since it uses less digits than its factorization.

1213332212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17470535 (or 17470529 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 1213332212112 its reverse (2112122333121), we get a palindrome (3325454545233).

The spelling of 1213332212112 in words is "one trillion, two hundred thirteen billion, three hundred thirty-two million, two hundred twelve thousand, one hundred twelve".