20221344102 has 32 divisors (see below), whose sum is σ = 42830952192. Its totient is φ = 6351152544.

The previous prime is 20221344067. The next prime is 20221344109. The reversal of 20221344102 is 20144312202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221344109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084273 + ... + 1102764.

It is an arithmetic number, because the mean of its divisors is an integer number (1338467256).

Almost surely, 2^20221344102 is an apocalyptic number.

20221344102 is an abundant number, since it is smaller than the sum of its proper divisors (22609608090).

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

20221344102 is a wasteful number, since it uses less digits than its factorization.

20221344102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187132.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20221344102 its reverse (20144312202), we get a palindrome (40365656304).

The spelling of 20221344102 in words is "twenty billion, two hundred twenty-one million, three hundred forty-four thousand, one hundred two".