20340432222 has 16 divisors (see below), whose sum is σ = 44379124992. Its totient is φ = 6163767320.

The previous prime is 20340432181. The next prime is 20340432239. The reversal of 20340432222 is 22223404302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20340432192 and 20340432201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 154094118 + ... + 154094249.

It is an arithmetic number, because the mean of its divisors is an integer number (2773695312).

Almost surely, 2^20340432222 is an apocalyptic number.

20340432222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20340432222 is an abundant number, since it is smaller than the sum of its proper divisors (24038692770).

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

20340432222 is a wasteful number, since it uses less digits than its factorization.

20340432222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308188383.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20340432222 its reverse (22223404302), we get a palindrome (42563836524).

The spelling of 20340432222 in words is "twenty billion, three hundred forty million, four hundred thirty-two thousand, two hundred twenty-two".