10121886 has 36 divisors (see below), whose sum is σ = 22947288. Its totient is φ = 3224232.

The previous prime is 10121833. The next prime is 10121897. The reversal of 10121886 is 68812101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8991 + ... + 10053.

Almost surely, 2^10121886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10121886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11473644).

10121886 is an abundant number, since it is smaller than the sum of its proper divisors (12825402).

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

10121886 is a wasteful number, since it uses less digits than its factorization.

10121886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 10121886 is about 3181.4911598180. The cubic root of 10121886 is about 216.3152546786.

Adding to 10121886 its reverse (68812101), we get a palindrome (78933987).

The spelling of 10121886 in words is "ten million, one hundred twenty-one thousand, eight hundred eighty-six".