21110000210102 has 4 divisors (see below), whose sum is σ = 31665000315156. Its totient is φ = 10555000105050.

The previous prime is 21110000210087. The next prime is 21110000210111. The reversal of 21110000210102 is 20101200001112.

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, 5277500052524 + ... + 5277500052527.

It is an arithmetic number, because the mean of its divisors is an integer number (7916250078789).

Almost surely, 2^{21110000210102} is an apocalyptic number.

21110000210102 is a deficient number, since it is larger than the sum of its proper divisors (10555000105054).

21110000210102 is a wasteful number, since it uses less digits than its factorization.

21110000210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555000105053.

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

Adding to 21110000210102 its reverse (20101200001112), we get a palindrome (41211200211214).

The spelling of 21110000210102 in words is "twenty-one trillion, one hundred ten billion, two hundred ten thousand, one hundred two".