21011120200112 has 40 divisors (see below), whose sum is σ = 46527783093792. Its totient is φ = 9004154227200.

The previous prime is 21011120200099. The next prime is 21011120200117. The reversal of 21011120200112 is 21100202111012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (21011120200117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4712189 + ... + 8014172.

Almost surely, 2^{21011120200112} is an apocalyptic number.

It is an amenable number.

21011120200112 is an abundant number, since it is smaller than the sum of its proper divisors (25516662893680).

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

21011120200112 is a wasteful number, since it uses less digits than its factorization.

21011120200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12741117 (or 12741111 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21011120200112 its reverse (21100202111012), we get a palindrome (42111322311124).

The spelling of 21011120200112 in words is "twenty-one trillion, eleven billion, one hundred twenty million, two hundred thousand, one hundred twelve".