1020112100012 has 36 divisors (see below), whose sum is σ = 1809526282200. Its totient is φ = 503194847232.

The previous prime is 1020112100011. The next prime is 1020112100071. The reversal of 1020112100012 is 2100012110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020112099966 and 1020112100002.

It is not an unprimeable number, because it can be changed into a prime (1020112100011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14190263 + ... + 14261969.

It is an arithmetic number, because the mean of its divisors is an integer number (50264618950).

Almost surely, 2^{1020112100012} is an apocalyptic number.

It is an amenable number.

1020112100012 is a deficient number, since it is larger than the sum of its proper divisors (789414182188).

1020112100012 is an equidigital number, since it uses as much as digits as its factorization.

1020112100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72338 (or 72247 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020112100012 its reverse (2100012110201), we get a palindrome (3120124210213).

The spelling of 1020112100012 in words is "one trillion, twenty billion, one hundred twelve million, one hundred thousand, twelve".