111001121021012 has 48 divisors (see below), whose sum is σ = 195686204313600. Its totient is φ = 55092519830880.

The previous prime is 111001121020991. The next prime is 111001121021053. The reversal of 111001121021012 is 210120121100111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403310687 + ... + 403585817.

It is an arithmetic number, because the mean of its divisors is an integer number (4076795923200).

Almost surely, 2^{111001121021012} is an apocalyptic number.

It is an amenable number.

111001121021012 is a deficient number, since it is larger than the sum of its proper divisors (84685083292588).

111001121021012 is a wasteful number, since it uses less digits than its factorization.

111001121021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276716 (or 276714 counting only the distinct ones).

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

Adding to 111001121021012 its reverse (210120121100111), we get a palindrome (321121242121123).

The spelling of 111001121021012 in words is "one hundred eleven trillion, one billion, one hundred twenty-one million, twenty-one thousand, twelve".