20354221041 has 32 divisors (see below), whose sum is σ = 34170633216. Its totient is φ = 10468920000.

The previous prime is 20354221037. The next prime is 20354221073. The reversal of 20354221041 is 14012245302.

It is not a de Polignac number, because 20354221041 - 2² = 20354221037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20354221081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412875 + ... + 459536.

It is an arithmetic number, because the mean of its divisors is an integer number (1067832288).

Almost surely, 2^20354221041 is an apocalyptic number.

20354221041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20354221041 is a deficient number, since it is larger than the sum of its proper divisors (13816412175).

20354221041 is a wasteful number, since it uses less digits than its factorization.

20354221041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872533.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20354221041 its reverse (14012245302), we get a palindrome (34366466343).

The spelling of 20354221041 in words is "twenty billion, three hundred fifty-four million, two hundred twenty-one thousand, forty-one".