20112120100012 has 12 divisors (see below), whose sum is σ = 37266575479560. Its totient is φ = 9464527105856.

The previous prime is 20112120099983. The next prime is 20112120100019. The reversal of 20112120100012 is 21000102121102.

It is a junction number, because it is equal to n+sod(n) for n = 20112120099965 and 20112120100001.

It is not an unprimeable number, because it can be changed into a prime (20112120100019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147883235962 + ... + 147883236097.

It is an arithmetic number, because the mean of its divisors is an integer number (3105547956630).

Almost surely, 2^{20112120100012} is an apocalyptic number.

It is an amenable number.

20112120100012 is a deficient number, since it is larger than the sum of its proper divisors (17154455379548).

20112120100012 is a wasteful number, since it uses less digits than its factorization.

20112120100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295766472080 (or 295766472078 counting only the distinct ones).

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

Adding to 20112120100012 its reverse (21000102121102), we get a palindrome (41112222221114).

The spelling of 20112120100012 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, one hundred thousand, twelve".