1012112111211 has 32 divisors (see below), whose sum is σ = 1405831802880. Its totient is φ = 646971494400.

The previous prime is 1012112111207. The next prime is 1012112111221. The reversal of 1012112111211 is 1121112112101.

It is not a de Polignac number, because 1012112111211 - 2² = 1012112111207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012112111221) by changing a digit.

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, 33287826 + ... + 33318216.

It is an arithmetic number, because the mean of its divisors is an integer number (43932243840).

Almost surely, 2^{1012112111211} is an apocalyptic number.

1012112111211 is a deficient number, since it is larger than the sum of its proper divisors (393719691669).

1012112111211 is a wasteful number, since it uses less digits than its factorization.

1012112111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33707.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1012112111211 its reverse (1121112112101), we get a palindrome (2133224223312).

The spelling of 1012112111211 in words is "one trillion, twelve billion, one hundred twelve million, one hundred eleven thousand, two hundred eleven".