21112112000101 has 16 divisors (see below), whose sum is σ = 23120786882560. Its totient is φ = 19203348734640.

The previous prime is 21112112000099. The next prime is 21112112000113. The reversal of 21112112000101 is 10100021121112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21112112000101 - 2¹ = 21112112000099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112112000801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141043281 + ... + 141192886.

It is an arithmetic number, because the mean of its divisors is an integer number (1445049180160).

Almost surely, 2^{21112112000101} is an apocalyptic number.

It is an amenable number.

21112112000101 is a deficient number, since it is larger than the sum of its proper divisors (2008674882459).

21112112000101 is a wasteful number, since it uses less digits than its factorization.

21112112000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282236344.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21112112000101 its reverse (10100021121112), we get a palindrome (31212133121213).

The spelling of 21112112000101 in words is "twenty-one trillion, one hundred twelve billion, one hundred twelve million, one hundred one", and thus it is an aban number.