20012322122 has 16 divisors (see below), whose sum is σ = 32402275080. Its totient is φ = 9215119872.

The previous prime is 20012322101. The next prime is 20012322151. The reversal of 20012322122 is 22122321002.

It can be written as a sum of positive squares in 4 ways, for example, as 4324509121 + 15687813001 = 65761^2 + 125251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20012322122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 877547 + ... + 900062.

Almost surely, 2^20012322122 is an apocalyptic number.

20012322122 is a deficient number, since it is larger than the sum of its proper divisors (12389952958).

20012322122 is a wasteful number, since it uses less digits than its factorization.

20012322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778057.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20012322122 its reverse (22122321002), we get a palindrome (42134643124).

The spelling of 20012322122 in words is "twenty billion, twelve million, three hundred twenty-two thousand, one hundred twenty-two".