20011001121112 has 16 divisors (see below), whose sum is σ = 37520994484800. Its totient is φ = 10005402591840.

The previous prime is 20011001121101. The next prime is 20011001121121. The reversal of 20011001121112 is 21112110011002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20011001121092 and 20011001121101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11374339 + ... + 13015282.

It is an arithmetic number, because the mean of its divisors is an integer number (2345062155300).

Almost surely, 2^{20011001121112} is an apocalyptic number.

It is an amenable number.

20011001121112 is a deficient number, since it is larger than the sum of its proper divisors (17509993363688).

20011001121112 is a wasteful number, since it uses less digits than its factorization.

20011001121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24492186 (or 24492182 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20011001121112 its reverse (21112110011002), we get a palindrome (41123111132114).

The spelling of 20011001121112 in words is "twenty trillion, eleven billion, one million, one hundred twenty-one thousand, one hundred twelve".