21211112000112 has 40 divisors (see below), whose sum is σ = 54796646230656. Its totient is φ = 7070206335936.

The previous prime is 21211112000077. The next prime is 21211112000153. The reversal of 21211112000112 is 21100021111212.

It is a happy number.

It is a super-2 number, since 2×21211112000112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21211112000091 and 21211112000100.

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, 3039798 + ... + 7187669.

Almost surely, 2^{21211112000112} is an apocalyptic number.

It is an amenable number.

21211112000112 is an abundant number, since it is smaller than the sum of its proper divisors (33585534230544).

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

21211112000112 is a wasteful number, since it uses less digits than its factorization.

21211112000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10270685 (or 10270679 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 21211112000112 its reverse (21100021111212), we get a palindrome (42311133111324).

The spelling of 21211112000112 in words is "twenty-one trillion, two hundred eleven billion, one hundred twelve million, one hundred twelve", and thus it is an aban number.