21000112119 has 24 divisors (see below), whose sum is σ = 36174108672. Its totient is φ = 11478321360.

The previous prime is 21000112061. The next prime is 21000112127. The reversal of 21000112119 is 91121100012.

It is a happy number.

It is not a de Polignac number, because 21000112119 - 2⁹ = 21000111607 is a prime.

It is a super-2 number, since 2×21000112119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000113119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7244967 + ... + 7247864.

It is an arithmetic number, because the mean of its divisors is an integer number (1507254528).

Almost surely, 2^21000112119 is an apocalyptic number.

21000112119 is a deficient number, since it is larger than the sum of its proper divisors (15173996553).

21000112119 is a wasteful number, since it uses less digits than its factorization.

21000112119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14492867 (or 14492864 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 21000112119 in words is "twenty-one billion, one hundred twelve thousand, one hundred nineteen".