20120221010009 has 8 divisors (see below), whose sum is σ = 20170024206720. Its totient is φ = 20070420787296.

The previous prime is 20120221010003. The next prime is 20120221010027. The reversal of 20120221010009 is 90001012202102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20120221010009 - 2²⁰ = 20120219961433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120221010003) 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 7 ways as a sum of consecutive naturals, for example, 13123604 + ... + 14576330.

It is an arithmetic number, because the mean of its divisors is an integer number (2521253025840).

Almost surely, 2^{20120221010009} is an apocalyptic number.

It is an amenable number.

20120221010009 is a deficient number, since it is larger than the sum of its proper divisors (49803196711).

20120221010009 is a wasteful number, since it uses less digits than its factorization.

20120221010009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486999.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 20120221010009 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, ten thousand, nine".