21001112001110 has 8 divisors (see below), whose sum is σ = 37802001602016. Its totient is φ = 8400444800440.

The previous prime is 21001112000927. The next prime is 21001112001131. The reversal of 21001112001110 is 1110021110012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21001112001091 and 21001112001100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050055600046 + ... + 1050055600065.

It is an arithmetic number, because the mean of its divisors is an integer number (4725250200252).

Almost surely, 2^{21001112001110} is an apocalyptic number.

21001112001110 is a deficient number, since it is larger than the sum of its proper divisors (16800889600906).

21001112001110 is a wasteful number, since it uses less digits than its factorization.

21001112001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100111200118.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 21001112001110 its reverse (1110021110012), we get a palindrome (22111133111122).

The spelling of 21001112001110 in words is "twenty-one trillion, one billion, one hundred twelve million, one thousand, one hundred ten".