21112200120001 has 8 divisors (see below), whose sum is σ = 21470242959360. Its totient is φ = 20754164245392.

The previous prime is 21112200119999. The next prime is 21112200120031. The reversal of 21112200120001 is 10002100221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21112200120001 - 2¹ = 21112200119999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21112200120031) 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, 4564831 + ... + 7941163.

It is an arithmetic number, because the mean of its divisors is an integer number (2683780369920).

Almost surely, 2^{21112200120001} is an apocalyptic number.

It is an amenable number.

21112200120001 is a deficient number, since it is larger than the sum of its proper divisors (358042839359).

21112200120001 is a wasteful number, since it uses less digits than its factorization.

21112200120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482375.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21112200120001 its reverse (10002100221112), we get a palindrome (31114300341113).

The spelling of 21112200120001 in words is "twenty-one trillion, one hundred twelve billion, two hundred million, one hundred twenty thousand, one".