144012220421 has 8 divisors (see below), whose sum is σ = 149392118400. Its totient is φ = 138721246560.

The previous prime is 144012220403. The next prime is 144012220423. The reversal of 144012220421 is 124022210441.

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 144012220421 - 2¹⁰ = 144012219397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144012220423) 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, 22227731 + ... + 22234208.

It is an arithmetic number, because the mean of its divisors is an integer number (18674014800).

Almost surely, 2^144012220421 is an apocalyptic number.

It is an amenable number.

144012220421 is a deficient number, since it is larger than the sum of its proper divisors (5379897979).

144012220421 is an equidigital number, since it uses as much as digits as its factorization.

144012220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44462059.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 144012220421 its reverse (124022210441), we get a palindrome (268034430862).

The spelling of 144012220421 in words is "one hundred forty-four billion, twelve million, two hundred twenty thousand, four hundred twenty-one".