21112110038 has 8 divisors (see below), whose sum is σ = 31684935240. Its totient is φ = 10550464960.

The previous prime is 21112110037. The next prime is 21112110109. The reversal of 21112110038 is 83001121112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21112110038² (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 (21112110031) 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 3 ways as a sum of consecutive naturals, for example, 2790308 + ... + 2797863.

It is an arithmetic number, because the mean of its divisors is an integer number (3960616905).

Almost surely, 2^21112110038 is an apocalyptic number.

21112110038 is a deficient number, since it is larger than the sum of its proper divisors (10572825202).

21112110038 is a wasteful number, since it uses less digits than its factorization.

21112110038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590062.

The product of its (nonzero) digits is 96, while the sum is 20.

The spelling of 21112110038 in words is "twenty-one billion, one hundred twelve million, one hundred ten thousand, thirty-eight".