20144122242401 has 4 divisors (see below), whose sum is σ = 20572720588032. Its totient is φ = 19715523896772.

The previous prime is 20144122242373. The next prime is 20144122242437. The reversal of 20144122242401 is 10424222144102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20144122242401 - 2²² = 20144118048097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20144122242001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214299172745 + ... + 214299172838.

It is an arithmetic number, because the mean of its divisors is an integer number (5143180147008).

Almost surely, 2^{20144122242401} is an apocalyptic number.

It is an amenable number.

20144122242401 is a deficient number, since it is larger than the sum of its proper divisors (428598345631).

20144122242401 is an equidigital number, since it uses as much as digits as its factorization.

20144122242401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428598345630.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 20144122242401 its reverse (10424222144102), we get a palindrome (30568344386503).

The spelling of 20144122242401 in words is "twenty trillion, one hundred forty-four billion, one hundred twenty-two million, two hundred forty-two thousand, four hundred one".