100122081 has 8 divisors (see below), whose sum is σ = 133830624. Its totient is φ = 66580800.

The previous prime is 100122067. The next prime is 100122089. The reversal of 100122081 is 180221001.

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

It is not a de Polignac number, because 100122081 - 2⁵ = 100122049 is a prime.

It is a super-2 number, since 2×100122081² = 20048862207541122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100122081.

It is not an unprimeable number, because it can be changed into a prime (100122089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40411 + ... + 42816.

It is an arithmetic number, because the mean of its divisors is an integer number (16728828).

Almost surely, 2^100122081 is an apocalyptic number.

It is an amenable number.

100122081 is a deficient number, since it is larger than the sum of its proper divisors (33708543).

100122081 is an equidigital number, since it uses as much as digits as its factorization.

100122081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83631.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 100122081 is about 10006.1021881650. The cubic root of 100122081 is about 464.3476898186.

Adding to 100122081 its reverse (180221001), we get a palindrome (280343082).

The spelling of 100122081 in words is "one hundred million, one hundred twenty-two thousand, eighty-one".