1211011102112 has 36 divisors (see below), whose sum is σ = 2773431679410. Its totient is φ = 519004757376.

The previous prime is 1211011102097. The next prime is 1211011102117. The reversal of 1211011102112 is 2112011101121.

It can be written as a sum of positive squares in only one way, i.e., 831313591696 + 379697510416 = 911764^2 + 616196^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1211011102117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386162687 + ... + 386165822.

Almost surely, 2^{1211011102112} is an apocalyptic number.

It is an amenable number.

1211011102112 is an abundant number, since it is smaller than the sum of its proper divisors (1562420577298).

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

1211011102112 is an equidigital number, since it uses as much as digits as its factorization.

1211011102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772328533 (or 772328518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1211011102112 its reverse (2112011101121), we get a palindrome (3323022203233).

Subtracting 1211011102112 from its reverse (2112011101121), we obtain a palindrome (900999999009).

The spelling of 1211011102112 in words is "one trillion, two hundred eleven billion, eleven million, one hundred two thousand, one hundred twelve".