20404011220201 has 24 divisors (see below), whose sum is σ = 24986013101280. Its totient is φ = 16567669685952.

The previous prime is 20404011220139. The next prime is 20404011220207. The reversal of 20404011220201 is 10202211040402.

It is not a de Polignac number, because 20404011220201 - 2¹⁵ = 20404011187433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20404011220207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14952645 + ... + 16260061.

It is an arithmetic number, because the mean of its divisors is an integer number (1041083879220).

Almost surely, 2^{20404011220201} is an apocalyptic number.

It is an amenable number.

20404011220201 is a deficient number, since it is larger than the sum of its proper divisors (4582001881079).

20404011220201 is a wasteful number, since it uses less digits than its factorization.

20404011220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324213 (or 1324206 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20404011220201 its reverse (10202211040402), we get a palindrome (30606222260603).

The spelling of 20404011220201 in words is "twenty trillion, four hundred four billion, eleven million, two hundred twenty thousand, two hundred one".