21112102222001 has 8 divisors (see below), whose sum is σ = 24128483823360. Its totient is φ = 18095812370208.

The previous prime is 21112102221871. The next prime is 21112102222007. The reversal of 21112102222001 is 10022220121112.

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 21112102222001 - 2²² = 21112098027697 is a prime.

It is a super-2 number, since 2×21112102222001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21112102222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22443596 + ... + 23365341.

It is an arithmetic number, because the mean of its divisors is an integer number (3016060477920).

Almost surely, 2^{21112102222001} is an apocalyptic number.

It is an amenable number.

21112102222001 is a deficient number, since it is larger than the sum of its proper divisors (3016381601359).

21112102222001 is an equidigital number, since it uses as much as digits as its factorization.

21112102222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45874783.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21112102222001 its reverse (10022220121112), we get a palindrome (31134322343113).

The spelling of 21112102222001 in words is "twenty-one trillion, one hundred twelve billion, one hundred two million, two hundred twenty-two thousand, one".