1002011121112 has 8 divisors (see below), whose sum is σ = 1878770852100. Its totient is φ = 501005560552.

The previous prime is 1002011121109. The next prime is 1002011121143. The reversal of 1002011121112 is 2111211102001.

It is a happy number.

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 = 1002011121092 and 1002011121101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62625695062 + ... + 62625695077.

Almost surely, 2^{1002011121112} is an apocalyptic number.

It is an amenable number.

1002011121112 is a deficient number, since it is larger than the sum of its proper divisors (876759730988).

1002011121112 is a wasteful number, since it uses less digits than its factorization.

1002011121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125251390145 (or 125251390141 counting only the distinct ones).

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

Adding to 1002011121112 its reverse (2111211102001), we get a palindrome (3113222223113).

The spelling of 1002011121112 in words is "one trillion, two billion, eleven million, one hundred twenty-one thousand, one hundred twelve".