10900121 has 4 divisors (see below), whose sum is σ = 10912692. Its totient is φ = 10887552.

The previous prime is 10900103. The next prime is 10900147. The reversal of 10900121 is 12100901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3474496 + 7425625 = 1864^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 10900121 - 2²² = 6705817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10900096 and 10900105.

It is not an unprimeable number, because it can be changed into a prime (10903121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4880 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (2728173).

Almost surely, 2^10900121 is an apocalyptic number.

It is an amenable number.

10900121 is a deficient number, since it is larger than the sum of its proper divisors (12571).

10900121 is an equidigital number, since it uses as much as digits as its factorization.

10900121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 10900121 is about 3301.5331287146. The cubic root of 10900121 is about 221.7228435329.

The spelling of 10900121 in words is "ten million, nine hundred thousand, one hundred twenty-one".