2001002112102 has 24 divisors (see below), whose sum is σ = 4655392669656. Its totient is φ = 571714889088.

The previous prime is 2001002112049. The next prime is 2001002112139. The reversal of 2001002112102 is 2012112001002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403064523 + ... + 3403065110.

It is an arithmetic number, because the mean of its divisors is an integer number (193974694569).

Almost surely, 2^{2001002112102} is an apocalyptic number.

2001002112102 is an abundant number, since it is smaller than the sum of its proper divisors (2654390557554).

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

2001002112102 is a wasteful number, since it uses less digits than its factorization.

2001002112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806129652 (or 6806129645 counting only the distinct ones).

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

Adding to 2001002112102 its reverse (2012112001002), we get a palindrome (4013114113104).

The spelling of 2001002112102 in words is "two trillion, one billion, two million, one hundred twelve thousand, one hundred two".