10108821 has 16 divisors (see below), whose sum is σ = 14113280. Its totient is φ = 6428160.

The previous prime is 10108801. The next prime is 10108823. The reversal of 10108821 is 12880101.

It is not a de Polignac number, because 10108821 - 2⁵ = 10108789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10108823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6045 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (882080).

Almost surely, 2^10108821 is an apocalyptic number.

It is an amenable number.

10108821 is a deficient number, since it is larger than the sum of its proper divisors (4004459).

10108821 is a wasteful number, since it uses less digits than its factorization.

10108821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 10108821 is about 3179.4372143510. The cubic root of 10108821 is about 216.2221437160. Note that the first 3 decimals are identical.

Adding to 10108821 its reverse (12880101), we get a palindrome (22988922).

The spelling of 10108821 in words is "ten million, one hundred eight thousand, eight hundred twenty-one".