21000201110102 has 4 divisors (see below), whose sum is σ = 31500301665156. Its totient is φ = 10500100555050.

The previous prime is 21000201110099. The next prime is 21000201110111. The reversal of 21000201110102 is 20101110200012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250050277524 + ... + 5250050277527.

It is an arithmetic number, because the mean of its divisors is an integer number (7875075416289).

Almost surely, 2^{21000201110102} is an apocalyptic number.

21000201110102 is a deficient number, since it is larger than the sum of its proper divisors (10500100555054).

21000201110102 is a wasteful number, since it uses less digits than its factorization.

21000201110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500100555053.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000201110102 its reverse (20101110200012), we get a palindrome (41101311310114).

It can be divided in two parts, 21000 and 201110102, that added together give a palindrome (201131102).

The spelling of 21000201110102 in words is "twenty-one trillion, two hundred one million, one hundred ten thousand, one hundred two".