1211230010112 has 36 divisors (see below), whose sum is σ = 3223638206040. Its totient is φ = 403743336448.

The previous prime is 1211230010021. The next prime is 1211230010147. The reversal of 1211230010112 is 2110100321121.

It is a junction number, because it is equal to n+sod(n) for n = 1211230010091 and 1211230010100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788560437 + ... + 788561972.

Almost surely, 2^{1211230010112} is an apocalyptic number.

1211230010112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211230010112 is an abundant number, since it is smaller than the sum of its proper divisors (2012408195928).

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

1211230010112 is an equidigital number, since it uses as much as digits as its factorization.

1211230010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577122428 (or 1577122414 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1211230010112 its reverse (2110100321121), we get a palindrome (3321330331233).

The spelling of 1211230010112 in words is "one trillion, two hundred eleven billion, two hundred thirty million, ten thousand, one hundred twelve".