100000021102 has 4 divisors (see below), whose sum is σ = 150000031656. Its totient is φ = 50000010550.

The previous prime is 100000021091. The next prime is 100000021109. The reversal of 100000021102 is 201120000001.

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 (100000021109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000005274 + ... + 25000005277.

It is an arithmetic number, because the mean of its divisors is an integer number (37500007914).

Almost surely, 2^100000021102 is an apocalyptic number.

100000021102 is a deficient number, since it is larger than the sum of its proper divisors (50000010554).

100000021102 is an equidigital number, since it uses as much as digits as its factorization.

100000021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50000010553.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100000021102 its reverse (201120000001), we get a palindrome (301120021103).

The spelling of 100000021102 in words is "one hundred billion, twenty-one thousand, one hundred two".