100001209986 has 16 divisors (see below), whose sum is σ = 222224911200. Its totient is φ = 33333736644.

The previous prime is 100001209969. The next prime is 100001210003. The reversal of 100001209986 is 689902100001.

It is an interprime number because it is at equal distance from previous prime (100001209969) and next prime (100001210003).

It is a super-2 number, since 2×100001209986² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100001209986.

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, 925937076 + ... + 925937183.

It is an arithmetic number, because the mean of its divisors is an integer number (13889056950).

Almost surely, 2^100001209986 is an apocalyptic number.

100001209986 is an abundant number, since it is smaller than the sum of its proper divisors (122223701214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100001209986 is a wasteful number, since it uses less digits than its factorization.

100001209986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851874270 (or 1851874264 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

Adding to 100001209986 its reverse (689902100001), we get a palindrome (789903309987).

The spelling of 100001209986 in words is "one hundred billion, one million, two hundred nine thousand, nine hundred eighty-six".