20111112202 has 16 divisors (see below), whose sum is σ = 30234657024. Its totient is φ = 10032912000.

The previous prime is 20111112199. The next prime is 20111112221. The reversal of 20111112202 is 20221111102.

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, 3469927 + ... + 3475717.

It is an arithmetic number, because the mean of its divisors is an integer number (1889666064).

Almost surely, 2^20111112202 is an apocalyptic number.

20111112202 is a deficient number, since it is larger than the sum of its proper divisors (10123544822).

20111112202 is a wasteful number, since it uses less digits than its factorization.

20111112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20111112202 its reverse (20221111102), we get a palindrome (40332223304).

The spelling of 20111112202 in words is "twenty billion, one hundred eleven million, one hundred twelve thousand, two hundred two".