21110124103412 has 48 divisors (see below), whose sum is σ = 38227929993792. Its totient is φ = 10193594342400.

The previous prime is 21110124103363. The next prime is 21110124103427. The reversal of 21110124103412 is 21430142101112.

It is a super-2 number, since 2×21110124103412² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16932938 + ... + 18136830.

It is an arithmetic number, because the mean of its divisors is an integer number (796415208204).

Almost surely, 2^{21110124103412} is an apocalyptic number.

It is an amenable number.

21110124103412 is a deficient number, since it is larger than the sum of its proper divisors (17117805890380).

21110124103412 is a wasteful number, since it uses less digits than its factorization.

21110124103412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205088 (or 1205086 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 21110124103412 its reverse (21430142101112), we get a palindrome (42540266204524).

The spelling of 21110124103412 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty-four million, one hundred three thousand, four hundred twelve".