20005216211301 has 32 divisors (see below), whose sum is σ = 28986357600000. Its totient is φ = 12234389680128.

The previous prime is 20005216211269. The next prime is 20005216211377. The reversal of 20005216211301 is 10311261250002.

It is a happy number.

It is not a de Polignac number, because 20005216211301 - 2⁵ = 20005216211269 is a prime.

It is a super-2 number, since 2×20005216211301² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005216111301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33250876 + ... + 33847173.

It is an arithmetic number, because the mean of its divisors is an integer number (905823675000).

Almost surely, 2^{20005216211301} is an apocalyptic number.

It is an amenable number.

20005216211301 is a deficient number, since it is larger than the sum of its proper divisors (8981141388699).

20005216211301 is a wasteful number, since it uses less digits than its factorization.

20005216211301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67098253.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 20005216211301 its reverse (10311261250002), we get a palindrome (30316477461303).

The spelling of 20005216211301 in words is "twenty trillion, five billion, two hundred sixteen million, two hundred eleven thousand, three hundred one".