1201122120112 has 20 divisors (see below), whose sum is σ = 2327203036080. Its totient is φ = 600553594688.

The previous prime is 1201122120097. The next prime is 1201122120157. The reversal of 1201122120112 is 2110212211021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000578 + ... + 1844830.

It is an arithmetic number, because the mean of its divisors is an integer number (116360151804).

Almost surely, 2^{1201122120112} is an apocalyptic number.

It is an amenable number.

1201122120112 is a deficient number, since it is larger than the sum of its proper divisors (1126080915968).

1201122120112 is an equidigital number, since it uses as much as digits as its factorization.

1201122120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933180 (or 933174 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201122120112 its reverse (2110212211021), we get a palindrome (3311334331133).

Subtracting 1201122120112 from its reverse (2110212211021), we obtain a palindrome (909090090909).

The spelling of 1201122120112 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".