1201111120012 has 96 divisors (see below), whose sum is σ = 2221632000000. Its totient is φ = 567411796224.

The previous prime is 1201111119991. The next prime is 1201111120103. The reversal of 1201111120012 is 2100211111021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1201111119974 and 1201111120001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600854989 + ... + 600856987.

It is an arithmetic number, because the mean of its divisors is an integer number (23142000000).

Almost surely, 2^{1201111120012} is an apocalyptic number.

It is an amenable number.

1201111120012 is a deficient number, since it is larger than the sum of its proper divisors (1020520879988).

1201111120012 is a wasteful number, since it uses less digits than its factorization.

1201111120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2661 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201111120012 its reverse (2100211111021), we get a palindrome (3301322231033).

The spelling of 1201111120012 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred twenty thousand, twelve".