21088846102 has 4 divisors (see below), whose sum is σ = 31633269156. Its totient is φ = 10544423050.

The previous prime is 21088846061. The next prime is 21088846109. The reversal of 21088846102 is 20164888012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21088846109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5272211524 + ... + 5272211527.

It is an arithmetic number, because the mean of its divisors is an integer number (7908317289).

Almost surely, 2^21088846102 is an apocalyptic number.

21088846102 is a deficient number, since it is larger than the sum of its proper divisors (10544423054).

21088846102 is a wasteful number, since it uses less digits than its factorization.

21088846102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544423053.

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 21088846102 in words is "twenty-one billion, eighty-eight million, eight hundred forty-six thousand, one hundred two".