21011022112201 has 8 divisors (see below), whose sum is σ = 23711498308800. Its totient is φ = 18442276461840.

The previous prime is 21011022112187. The next prime is 21011022112261. The reversal of 21011022112201 is 10221122011012.

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

It is not a de Polignac number, because 21011022112201 - 2⁹ = 21011022111689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21011022112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32932636221 + ... + 32932636858.

It is an arithmetic number, because the mean of its divisors is an integer number (2963937288600).

Almost surely, 2^{21011022112201} is an apocalyptic number.

It is an amenable number.

21011022112201 is a deficient number, since it is larger than the sum of its proper divisors (2700476196599).

21011022112201 is a wasteful number, since it uses less digits than its factorization.

21011022112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65865273119.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21011022112201 its reverse (10221122011012), we get a palindrome (31232144123213).

The spelling of 21011022112201 in words is "twenty-one trillion, eleven billion, twenty-two million, one hundred twelve thousand, two hundred one".