100021119985 has 8 divisors (see below), whose sum is σ = 120647238120. Its totient is φ = 79602299904.

The previous prime is 100021119959. The next prime is 100021120051. The reversal of 100021119985 is 589911120001.

It can be written as a sum of positive squares in 4 ways, for example, as 2354869729 + 97666250256 = 48527^2 + 312516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100021119985 - 2⁵ = 100021119953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51823450 + ... + 51825379.

It is an arithmetic number, because the mean of its divisors is an integer number (15080904765).

Almost surely, 2^100021119985 is an apocalyptic number.

It is an amenable number.

100021119985 is a deficient number, since it is larger than the sum of its proper divisors (20626118135).

100021119985 is a wasteful number, since it uses less digits than its factorization.

100021119985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103649027.

The product of its (nonzero) digits is 6480, while the sum is 37.

Adding to 100021119985 its reverse (589911120001), we get a palindrome (689932239986).

The spelling of 100021119985 in words is "one hundred billion, twenty-one million, one hundred nineteen thousand, nine hundred eighty-five".