1201110012012 has 24 divisors (see below), whose sum is σ = 2836356175296. Its totient is φ = 395546268688.

The previous prime is 1201110011993. The next prime is 1201110012031. The reversal of 1201110012012 is 2102100111021.

It is an interprime number because it is at equal distance from previous prime (1201110011993) and next prime (1201110012031).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 602965878 + ... + 602967869.

It is an arithmetic number, because the mean of its divisors is an integer number (118181507304).

Almost surely, 2^{1201110012012} is an apocalyptic number.

1201110012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201110012012 is an abundant number, since it is smaller than the sum of its proper divisors (1635246163284).

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

1201110012012 is a wasteful number, since it uses less digits than its factorization.

1201110012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205933837 (or 1205933835 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201110012012 its reverse (2102100111021), we get a palindrome (3303210123033).

Subtracting 1201110012012 from its reverse (2102100111021), we obtain a palindrome (900990099009).

The spelling of 1201110012012 in words is "one trillion, two hundred one billion, one hundred ten million, twelve thousand, twelve".