20302102221000 has 128 divisors (see below), whose sum is σ = 63746016197760. Its totient is φ = 5379410400000.

The previous prime is 20302102220993. The next prime is 20302102221007. The reversal of 20302102221000 is 12220120302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20302102220993) and next prime (20302102221007).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20302102221007) 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 31 ways as a sum of consecutive naturals, for example, 21081126 + ... + 22023125.

It is an arithmetic number, because the mean of its divisors is an integer number (498015751545).

Almost surely, 2^{20302102221000} is an apocalyptic number.

20302102221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302102221000 is an abundant number, since it is smaller than the sum of its proper divisors (43443913976760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20302102221000 is a wasteful number, since it uses less digits than its factorization.

20302102221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43104432 (or 43104418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20302102221000 its reverse (12220120302), we get a palindrome (20314322341302).

The spelling of 20302102221000 in words is "twenty trillion, three hundred two billion, one hundred two million, two hundred twenty-one thousand".