20103122212 has 12 divisors (see below), whose sum is σ = 35210110320. Its totient is φ = 10043090696.

The previous prime is 20103122189. The next prime is 20103122233. The reversal of 20103122212 is 21222130102.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 2112262 + ... + 2121757.

It is an arithmetic number, because the mean of its divisors is an integer number (2934175860).

Almost surely, 2^20103122212 is an apocalyptic number.

It is an amenable number.

20103122212 is a deficient number, since it is larger than the sum of its proper divisors (15106988108).

20103122212 is a wasteful number, since it uses less digits than its factorization.

20103122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235210 (or 4235208 counting only the distinct ones).

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

Adding to 20103122212 its reverse (21222130102), we get a palindrome (41325252314).

The spelling of 20103122212 in words is "twenty billion, one hundred three million, one hundred twenty-two thousand, two hundred twelve".