21100201112 has 64 divisors (see below), whose sum is σ = 40340160000. Its totient is φ = 10345654656.

The previous prime is 21100200997. The next prime is 21100201139. The reversal of 21100201112 is 21110200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100201093 and 21100201102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57493553 + ... + 57493919.

It is an arithmetic number, because the mean of its divisors is an integer number (630315000).

Almost surely, 2^21100201112 is an apocalyptic number.

It is an amenable number.

21100201112 is a deficient number, since it is larger than the sum of its proper divisors (19239958888).

21100201112 is a wasteful number, since it uses less digits than its factorization.

21100201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21100201112 its reverse (21110200112), we get a palindrome (42210401224).

The spelling of 21100201112 in words is "twenty-one billion, one hundred million, two hundred one thousand, one hundred twelve".