20402211441 has 8 divisors (see below), whose sum is σ = 27235766080. Its totient is φ = 13585065552.

The previous prime is 20402211407. The next prime is 20402211493. The reversal of 20402211441 is 14411220402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20402211441 - 2⁹ = 20402210929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20402211941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099285 + ... + 4104258.

It is an arithmetic number, because the mean of its divisors is an integer number (3404470760).

Almost surely, 2^20402211441 is an apocalyptic number.

It is an amenable number.

20402211441 is a deficient number, since it is larger than the sum of its proper divisors (6833554639).

20402211441 is an equidigital number, since it uses as much as digits as its factorization.

20402211441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204375.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20402211441 its reverse (14411220402), we get a palindrome (34813431843).

The spelling of 20402211441 in words is "twenty billion, four hundred two million, two hundred eleven thousand, four hundred forty-one".