21111010010019 has 48 divisors (see below), whose sum is σ = 32628454185600. Its totient is φ = 13114596480768.

The previous prime is 21111010009987. The next prime is 21111010010039. The reversal of 21111010010019 is 91001001011112.

It is not a de Polignac number, because 21111010010019 - 2⁵ = 21111010009987 is a prime.

It is a super-2 number, since 2×21111010010019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21111010009983 and 21111010010010.

It is not an unprimeable number, because it can be changed into a prime (21111010010039) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 54454 + ... + 6498075.

It is an arithmetic number, because the mean of its divisors is an integer number (679759462200).

Almost surely, 2^{21111010010019} is an apocalyptic number.

21111010010019 is a deficient number, since it is larger than the sum of its proper divisors (11517444175581).

21111010010019 is a wasteful number, since it uses less digits than its factorization.

21111010010019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552864 (or 6552861 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 21111010010019 in words is "twenty-one trillion, one hundred eleven billion, ten million, ten thousand, nineteen".