144221211209 has 8 divisors (see below), whose sum is σ = 146533123008. Its totient is φ = 141927152400.

The previous prime is 144221211191. The next prime is 144221211217. The reversal of 144221211209 is 902112122441.

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 144221211209 - 2¹² = 144221207113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144221211229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4446962 + ... + 4479275.

It is an arithmetic number, because the mean of its divisors is an integer number (18316640376).

Almost surely, 2^144221211209 is an apocalyptic number.

It is an amenable number.

144221211209 is a deficient number, since it is larger than the sum of its proper divisors (2311911799).

144221211209 is a wasteful number, since it uses less digits than its factorization.

144221211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926495.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 144221211209 in words is "one hundred forty-four billion, two hundred twenty-one million, two hundred eleven thousand, two hundred nine".