20112202112 has 32 divisors (see below), whose sum is σ = 40239299880. Its totient is φ = 10012926976.

The previous prime is 20112202051. The next prime is 20112202129. The reversal of 20112202112 is 21120221102.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent 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, 307358 + ... + 367005.

Almost surely, 2^20112202112 is an apocalyptic number.

It is an amenable number.

20112202112 is an abundant number, since it is smaller than the sum of its proper divisors (20127097768).

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

20112202112 is an equidigital number, since it uses as much as digits as its factorization.

20112202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674610 (or 674598 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112202112 its reverse (21120221102), we get a palindrome (41232423214).

The spelling of 20112202112 in words is "twenty billion, one hundred twelve million, two hundred two thousand, one hundred twelve".