909221840012 has 6 divisors (see below), whose sum is σ = 1591138220028. Its totient is φ = 454610920004.

The previous prime is 909221840003. The next prime is 909221840017. The reversal of 909221840012 is 210048122909.

It is not an unprimeable number, because it can be changed into a prime (909221840017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113652729998 + ... + 113652730005.

It is an arithmetic number, because the mean of its divisors is an integer number (265189703338).

Almost surely, 2^909221840012 is an apocalyptic number.

It is an amenable number.

909221840012 is a deficient number, since it is larger than the sum of its proper divisors (681916380016).

909221840012 is a wasteful number, since it uses less digits than its factorization.

909221840012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227305460007 (or 227305460005 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 909221840012 in words is "nine hundred nine billion, two hundred twenty-one million, eight hundred forty thousand, twelve".