21101230112 has 24 divisors (see below), whose sum is σ = 42247170000. Its totient is φ = 10371790144.

The previous prime is 21101230099. The next prime is 21101230123. The reversal of 21101230112 is 21103210112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5586362 + ... + 5590137.

It is an arithmetic number, because the mean of its divisors is an integer number (1760298750).

Almost surely, 2^21101230112 is an apocalyptic number.

It is an amenable number.

21101230112 is an abundant number, since it is smaller than the sum of its proper divisors (21145939888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21101230112 is a wasteful number, since it uses less digits than its factorization.

21101230112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11176568 (or 11176560 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21101230112 its reverse (21103210112), we get a palindrome (42204440224).

The spelling of 21101230112 in words is "twenty-one billion, one hundred one million, two hundred thirty thousand, one hundred twelve".