1002002112111 has 96 divisors (see below), whose sum is σ = 1902509969920. Its totient is φ = 455191799040.

The previous prime is 1002002112109. The next prime is 1002002112119. The reversal of 1002002112111 is 1112112002001.

It is not a de Polignac number, because 1002002112111 - 2¹ = 1002002112109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002002112119) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 170620 + ... + 1425873.

Almost surely, 2^{1002002112111} is an apocalyptic number.

1002002112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002002112111 is a deficient number, since it is larger than the sum of its proper divisors (900507857809).

1002002112111 is a wasteful number, since it uses less digits than its factorization.

1002002112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596557 (or 1596546 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1002002112111 its reverse (1112112002001), we get a palindrome (2114114114112).

The spelling of 1002002112111 in words is "one trillion, two billion, two million, one hundred twelve thousand, one hundred eleven".