21112110011002 has 8 divisors (see below), whose sum is σ = 31673015421300. Its totient is φ = 10554438203904.

The previous prime is 21112110010993. The next prime is 21112110011021. The reversal of 21112110011002 is 20011001121112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20942604063481 + 169505947521 = 4576309^2 + 411711^2 .

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

It is a super-2 number, since 2×21112110011002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 808384477 + ... + 808410592.

Almost surely, 2^{21112110011002} is an apocalyptic number.

21112110011002 is a deficient number, since it is larger than the sum of its proper divisors (10560905410298).

21112110011002 is a wasteful number, since it uses less digits than its factorization.

21112110011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616801600.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21112110011002 its reverse (20011001121112), we get a palindrome (41123111132114).

The spelling of 21112110011002 in words is "twenty-one trillion, one hundred twelve billion, one hundred ten million, eleven thousand, two".