21201200000112 has 40 divisors (see below), whose sum is σ = 59748836365440. Its totient is φ = 6424606060480.

The previous prime is 21201200000089. The next prime is 21201200000129. The reversal of 21201200000112 is 21100000210212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20076893412 + ... + 20076894467.

It is an arithmetic number, because the mean of its divisors is an integer number (1493720909136).

Almost surely, 2^{21201200000112} is an apocalyptic number.

21201200000112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21201200000112 is an abundant number, since it is smaller than the sum of its proper divisors (38547636365328).

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

21201200000112 is a wasteful number, since it uses less digits than its factorization.

21201200000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40153787901 (or 40153787895 counting only the distinct ones).

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

Adding to 21201200000112 its reverse (21100000210212), we get a palindrome (42301200210324).

The spelling of 21201200000112 in words is "twenty-one trillion, two hundred one billion, two hundred million, one hundred twelve", and thus it is an aban number.