20320212120222 has 32 divisors (see below), whose sum is σ = 46785222496512. Its totient is φ = 5763396970944.

The previous prime is 20320212120121. The next prime is 20320212120239. The reversal of 20320212120222 is 22202121202302.

It is a super-2 number, since 2×20320212120222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 1765740868 + ... + 1765752375.

It is an arithmetic number, because the mean of its divisors is an integer number (1462038203016).

Almost surely, 2^{20320212120222} is an apocalyptic number.

20320212120222 is an abundant number, since it is smaller than the sum of its proper divisors (26465010376290).

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

20320212120222 is a wasteful number, since it uses less digits than its factorization.

20320212120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531493392.

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

Adding to 20320212120222 its reverse (22202121202302), we get a palindrome (42522333322524).

The spelling of 20320212120222 in words is "twenty trillion, three hundred twenty billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-two".