1012212102209 has 24 divisors (see below), whose sum is σ = 1288898267328. Its totient is φ = 786044646240.

The previous prime is 1012212102179. The next prime is 1012212102263. The reversal of 1012212102209 is 9022012122101.

1012212102209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1012212102209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012212102509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3046757 + ... + 3362610.

It is an arithmetic number, because the mean of its divisors is an integer number (53704094472).

Almost surely, 2^{1012212102209} is an apocalyptic number.

It is an amenable number.

1012212102209 is a deficient number, since it is larger than the sum of its proper divisors (276686165119).

1012212102209 is a wasteful number, since it uses less digits than its factorization.

1012212102209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409685 (or 6409678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1012212102209 in words is "one trillion, twelve billion, two hundred twelve million, one hundred two thousand, two hundred nine".