1002020012112 has 40 divisors (see below), whose sum is σ = 2958344798656. Its totient is φ = 286291431936.

The previous prime is 1002020012089. The next prime is 1002020012117. The reversal of 1002020012112 is 2112100202001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020012117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491100873 + ... + 1491101544.

Almost surely, 2^{1002020012112} is an apocalyptic number.

1002020012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002020012112 is an abundant number, since it is smaller than the sum of its proper divisors (1956324786544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002020012112 is a wasteful number, since it uses less digits than its factorization.

1002020012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982202435 (or 2982202429 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002020012112 its reverse (2112100202001), we get a palindrome (3114120214113).

It can be divided in two parts, 100202001 and 2112, that multiplied together give a palindrome (211626626112).

The spelling of 1002020012112 in words is "one trillion, two billion, twenty million, twelve thousand, one hundred twelve".