21110010112 has 18 divisors (see below), whose sum is σ = 42137559758. Its totient is φ = 10555004928.

The previous prime is 21110010109. The next prime is 21110010143. The reversal of 21110010112 is 21101001112.

It can be written as a sum of positive squares in only one way, i.e., 13127659776 + 7982350336 = 114576^2 + 89344^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41230233 + ... + 41230744.

Almost surely, 2^21110010112 is an apocalyptic number.

It is an amenable number.

21110010112 is a deficient number, since it is larger than the sum of its proper divisors (21027549646).

21110010112 is an frugal number, since it uses more digits than its factorization.

21110010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82460993 (or 82460979 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21110010112 its reverse (21101001112), we get a palindrome (42211011224).

The spelling of 21110010112 in words is "twenty-one billion, one hundred ten million, ten thousand, one hundred twelve".