20321222110 has 16 divisors (see below), whose sum is σ = 41803657056. Its totient is φ = 6967276128.

The previous prime is 20321222107. The next prime is 20321222143. The reversal of 20321222110 is 1122212302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 145151517 + ... + 145151656.

It is an arithmetic number, because the mean of its divisors is an integer number (2612728566).

Almost surely, 2^20321222110 is an apocalyptic number.

20321222110 is an abundant number, since it is smaller than the sum of its proper divisors (21482434946).

20321222110 is a wasteful number, since it uses less digits than its factorization.

20321222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290303187.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20321222110 its reverse (1122212302), we get a palindrome (21443434412).

The spelling of 20321222110 in words is "twenty billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".