21112010002101 has 32 divisors (see below), whose sum is σ = 28516801057920. Its totient is φ = 13891877888000.

The previous prime is 21112010002079. The next prime is 21112010002159. The reversal of 21112010002101 is 10120001021112.

It is a cyclic number.

It is not a de Polignac number, because 21112010002101 - 2¹⁸ = 21112009739957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112010002201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138133741 + ... + 138286493.

It is an arithmetic number, because the mean of its divisors is an integer number (891150033060).

Almost surely, 2^{21112010002101} is an apocalyptic number.

It is an amenable number.

21112010002101 is a deficient number, since it is larger than the sum of its proper divisors (7404791055819).

21112010002101 is a wasteful number, since it uses less digits than its factorization.

21112010002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154277.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21112010002101 its reverse (10120001021112), we get a palindrome (31232011023213).

The spelling of 21112010002101 in words is "twenty-one trillion, one hundred twelve billion, ten million, two thousand, one hundred one".