21112101200002 has 8 divisors (see below), whose sum is σ = 31694696775756. Its totient is φ = 10547202274752.

The previous prime is 21112101199999. The next prime is 21112101200027. The reversal of 21112101200002 is 20000210121112.

It can be written as a sum of positive squares in 2 ways, for example, as 18130231877521 + 2981869322481 = 4257961^2 + 1726809^2 .

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

It is an unprimeable number.

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, 4424159643 + ... + 4424164414.

Almost surely, 2^{21112101200002} is an apocalyptic number.

21112101200002 is a deficient number, since it is larger than the sum of its proper divisors (10582595575754).

21112101200002 is a wasteful number, since it uses less digits than its factorization.

21112101200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848325252.

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

Adding to 21112101200002 its reverse (20000210121112), we get a palindrome (41112311321114).

The spelling of 21112101200002 in words is "twenty-one trillion, one hundred twelve billion, one hundred one million, two hundred thousand, two".