20112111011102 has 16 divisors (see below), whose sum is σ = 32992798762224. Its totient is φ = 9119070960000.

The previous prime is 20112111011023. The next prime is 20112111011119. The reversal of 20112111011102 is 20111011121102.

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 7 ways as a sum of consecutive naturals, for example, 1139875049 + ... + 1139892692.

It is an arithmetic number, because the mean of its divisors is an integer number (2062049922639).

Almost surely, 2^{20112111011102} is an apocalyptic number.

20112111011102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20112111011102 is a deficient number, since it is larger than the sum of its proper divisors (12880687751122).

20112111011102 is a wasteful number, since it uses less digits than its factorization.

20112111011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279768155.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20112111011102 its reverse (20111011121102), we get a palindrome (40223122132204).

The spelling of 20112111011102 in words is "twenty trillion, one hundred twelve billion, one hundred eleven million, eleven thousand, one hundred two".