1002012111112 has 8 divisors (see below), whose sum is σ = 1878772708350. Its totient is φ = 501006055552.

The previous prime is 1002012111101. The next prime is 1002012111143. The reversal of 1002012111112 is 2111112102001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 567090326916 + 434921784196 = 753054^2 + 659486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1002012111092 and 1002012111101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62625756937 + ... + 62625756952.

Almost surely, 2^{1002012111112} is an apocalyptic number.

It is an amenable number.

1002012111112 is a deficient number, since it is larger than the sum of its proper divisors (876760597238).

1002012111112 is a wasteful number, since it uses less digits than its factorization.

1002012111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125251513895 (or 125251513891 counting only the distinct ones).

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

Adding to 1002012111112 its reverse (2111112102001), we get a palindrome (3113124213113).

The spelling of 1002012111112 in words is "one trillion, two billion, twelve million, one hundred eleven thousand, one hundred twelve".