1201100120012 has 96 divisors (see below), whose sum is σ = 2419875041472. Its totient is φ = 516738318336.

The previous prime is 1201100119979. The next prime is 1201100120089. The reversal of 1201100120012 is 2100210011021.

It is a junction number, because it is equal to n+sod(n) for n = 1201100119975 and 1201100120002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38713418 + ... + 38744430.

It is an arithmetic number, because the mean of its divisors is an integer number (25207031682).

Almost surely, 2^{1201100120012} is an apocalyptic number.

It is an amenable number.

1201100120012 is an abundant number, since it is smaller than the sum of its proper divisors (1218774921460).

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

1201100120012 is a wasteful number, since it uses less digits than its factorization.

1201100120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31467 (or 31465 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201100120012 its reverse (2100210011021), we get a palindrome (3301310131033).

The spelling of 1201100120012 in words is "one trillion, two hundred one billion, one hundred million, one hundred twenty thousand, twelve".