2001100012102 has 4 divisors (see below), whose sum is σ = 3001650018156. Its totient is φ = 1000550006050.

The previous prime is 2001100012001. The next prime is 2001100012103. The reversal of 2001100012102 is 2012100011002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001100012103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500275003024 + ... + 500275003027.

It is an arithmetic number, because the mean of its divisors is an integer number (750412504539).

Almost surely, 2^{2001100012102} is an apocalyptic number.

2001100012102 is a deficient number, since it is larger than the sum of its proper divisors (1000550006054).

2001100012102 is a wasteful number, since it uses less digits than its factorization.

2001100012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000550006053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2001100012102 its reverse (2012100011002), we get a palindrome (4013200023104).

The spelling of 2001100012102 in words is "two trillion, one billion, one hundred million, twelve thousand, one hundred two".