20112111202112 has 28 divisors (see below), whose sum is σ = 39910742916480. Its totient is φ = 10055861018496.

The previous prime is 20112111202009. The next prime is 20112111202121. The reversal of 20112111202112 is 21120211121102.

It is a super-2 number, since 2×20112111202112² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 321839 + ... + 6350417.

Almost surely, 2^{20112111202112} is an apocalyptic number.

It is an amenable number.

20112111202112 is a deficient number, since it is larger than the sum of its proper divisors (19798631714368).

20112111202112 is an equidigital number, since it uses as much as digits as its factorization.

20112111202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080718 (or 6080708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20112111202112 its reverse (21120211121102), we get a palindrome (41232322323214).

The spelling of 20112111202112 in words is "twenty trillion, one hundred twelve billion, one hundred eleven million, two hundred two thousand, one hundred twelve".