111100002012021 has 64 divisors (see below), whose sum is σ = 169817117331456. Its totient is φ = 64017124704000.

The previous prime is 111100002012007. The next prime is 111100002012037. The reversal of 111100002012021 is 120210200001111.

It is not a de Polignac number, because 111100002012021 - 2³⁵ = 111065642273653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111100002011988 and 111100002012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100002017021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1611750 + ... + 14993256.

It is an arithmetic number, because the mean of its divisors is an integer number (2653392458304).

Almost surely, 2^{111100002012021} is an apocalyptic number.

111100002012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111100002012021 is a deficient number, since it is larger than the sum of its proper divisors (58717115319435).

111100002012021 is a wasteful number, since it uses less digits than its factorization.

111100002012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381722.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111100002012021 its reverse (120210200001111), we get a palindrome (231310202013132).

The spelling of 111100002012021 in words is "one hundred eleven trillion, one hundred billion, two million, twelve thousand, twenty-one".