10012211209 has 24 divisors (see below), whose sum is σ = 13683031488. Its totient is φ = 7201585440.

The previous prime is 10012211191. The next prime is 10012211219. The reversal of 10012211209 is 90211221001.

It is a happy number.

It is not a de Polignac number, because 10012211209 - 2²¹ = 10010114057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10012211219) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 707437 + ... + 721450.

It is an arithmetic number, because the mean of its divisors is an integer number (570126312).

Almost surely, 2^10012211209 is an apocalyptic number.

It is an amenable number.

10012211209 is a deficient number, since it is larger than the sum of its proper divisors (3670820279).

10012211209 is a wasteful number, since it uses less digits than its factorization.

10012211209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428925 (or 1428918 counting only the distinct ones).

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

It can be divided in two parts, 1001 and 2211209, that multiplied together give a square (2213420209 = 47047²).

The spelling of 10012211209 in words is "ten billion, twelve million, two hundred eleven thousand, two hundred nine".