10012212109 has 4 divisors (see below), whose sum is σ = 10067528380. Its totient is φ = 9956895840.

The previous prime is 10012212103. The next prime is 10012212131. The reversal of 10012212109 is 90121221001.

It is a happy number.

10012212109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5273954884 + 4738257225 = 72622^2 + 68835^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012212109 - 2²⁵ = 9978657677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27657864 + ... + 27658225.

It is an arithmetic number, because the mean of its divisors is an integer number (2516882095).

Almost surely, 2^10012212109 is an apocalyptic number.

It is an amenable number.

10012212109 is a deficient number, since it is larger than the sum of its proper divisors (55316271).

10012212109 is an equidigital number, since it uses as much as digits as its factorization.

10012212109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55316270.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 10012212109 in words is "ten billion, twelve million, two hundred twelve thousand, one hundred nine".