21112022120001 has 4 divisors (see below), whose sum is σ = 28149362826672. Its totient is φ = 14074681413332.

The previous prime is 21112022119999. The next prime is 21112022120009. The reversal of 21112022120001 is 10002122021112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21112022120001 - 2¹ = 21112022119999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21112022120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3518670353331 + ... + 3518670353336.

It is an arithmetic number, because the mean of its divisors is an integer number (7037340706668).

Almost surely, 2^{21112022120001} is an apocalyptic number.

It is an amenable number.

21112022120001 is a deficient number, since it is larger than the sum of its proper divisors (7037340706671).

21112022120001 is an equidigital number, since it uses as much as digits as its factorization.

21112022120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037340706670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21112022120001 its reverse (10002122021112), we get a palindrome (31114144141113).

The spelling of 21112022120001 in words is "twenty-one trillion, one hundred twelve billion, twenty-two million, one hundred twenty thousand, one".