1212201101112 has 32 divisors (see below), whose sum is σ = 3030534136080. Its totient is φ = 404062849280.

The previous prime is 1212201101093. The next prime is 1212201101131. The reversal of 1212201101112 is 2111011022121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212201101093) and next prime (1212201101131).

It is a junction number, because it is equal to n+sod(n) for n = 1212201101091 and 1212201101100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869108 + ... + 3264380.

Almost surely, 2^{1212201101112} is an apocalyptic number.

1212201101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212201101112 is an abundant number, since it is smaller than the sum of its proper divisors (1818333034968).

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

1212201101112 is a wasteful number, since it uses less digits than its factorization.

1212201101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523063 (or 523059 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1212201101112 its reverse (2111011022121), we get a palindrome (3323212123233).

The spelling of 1212201101112 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred one thousand, one hundred twelve".