21200201112 has 32 divisors (see below), whose sum is σ = 53056526400. Its totient is φ = 7059263904.

The previous prime is 21200201111. The next prime is 21200201161. The reversal of 21200201112 is 21110200212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200201111) 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, 443662 + ... + 489117.

It is an arithmetic number, because the mean of its divisors is an integer number (1658016450).

Almost surely, 2^21200201112 is an apocalyptic number.

It is an amenable number.

21200201112 is an abundant number, since it is smaller than the sum of its proper divisors (31856325288).

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

21200201112 is a wasteful number, since it uses less digits than its factorization.

21200201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933735 (or 933731 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21200201112 its reverse (21110200212), we get a palindrome (42310401324).

The spelling of 21200201112 in words is "twenty-one billion, two hundred million, two hundred one thousand, one hundred twelve".