2111121211012 has 96 divisors (see below), whose sum is σ = 4157864000640. Its totient is φ = 929842053120.

The previous prime is 2111121210971. The next prime is 2111121211039. The reversal of 2111121211012 is 2101121211112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42659539 + ... + 42708997.

It is an arithmetic number, because the mean of its divisors is an integer number (43311083340).

Almost surely, 2^{2111121211012} is an apocalyptic number.

2111121211012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111121211012 is a deficient number, since it is larger than the sum of its proper divisors (2046742789628).

2111121211012 is a wasteful number, since it uses less digits than its factorization.

2111121211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49781 (or 49779 counting only the distinct ones).

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

Adding to 2111121211012 its reverse (2101121211112), we get a palindrome (4212242422124).

The spelling of 2111121211012 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand, twelve".