20020450440211 has 8 divisors (see below), whose sum is σ = 21560519986880. Its totient is φ = 18480385878912.

The previous prime is 20020450440181. The next prime is 20020450440283. The reversal of 20020450440211 is 11204405402002.

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 20020450440211 - 2²¹ = 20020448343059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020450440311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14021206 + ... + 15382948.

It is an arithmetic number, because the mean of its divisors is an integer number (2695064998360).

Almost surely, 2^{20020450440211} is an apocalyptic number.

20020450440211 is a deficient number, since it is larger than the sum of its proper divisors (1540069546669).

20020450440211 is a wasteful number, since it uses less digits than its factorization.

20020450440211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492685.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20020450440211 its reverse (11204405402002), we get a palindrome (31224855842213).

The spelling of 20020450440211 in words is "twenty trillion, twenty billion, four hundred fifty million, four hundred forty thousand, two hundred eleven".