1211002120112 has 40 divisors (see below), whose sum is σ = 2358722457696. Its totient is φ = 602300215296.

The previous prime is 1211002120063. The next prime is 1211002120199. The reversal of 1211002120112 is 2110212001121.

It is a super-2 number, since 2×1211002120112² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 45432773 + ... + 45459419.

Almost surely, 2^{1211002120112} is an apocalyptic number.

It is an amenable number.

1211002120112 is a deficient number, since it is larger than the sum of its proper divisors (1147720337584).

1211002120112 is a wasteful number, since it uses less digits than its factorization.

1211002120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41565 (or 41559 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211002120112 its reverse (2110212001121), we get a palindrome (3321214121233).

The spelling of 1211002120112 in words is "one trillion, two hundred eleven billion, two million, one hundred twenty thousand, one hundred twelve".