100021120107 has 4 divisors (see below), whose sum is σ = 133361493480. Its totient is φ = 66680746736.

The previous prime is 100021120099. The next prime is 100021120169. The reversal of 100021120107 is 701021120001.

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

It is a cyclic number.

It is not a de Polignac number, because 100021120107 - 2³ = 100021120099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100021120307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16670186682 + ... + 16670186687.

It is an arithmetic number, because the mean of its divisors is an integer number (33340373370).

Almost surely, 2^100021120107 is an apocalyptic number.

100021120107 is a deficient number, since it is larger than the sum of its proper divisors (33340373373).

100021120107 is an equidigital number, since it uses as much as digits as its factorization.

100021120107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33340373372.

The product of its (nonzero) digits is 28, while the sum is 15.

Adding to 100021120107 its reverse (701021120001), we get a palindrome (801042240108).

The spelling of 100021120107 in words is "one hundred billion, twenty-one million, one hundred twenty thousand, one hundred seven".