20002111102 has 4 divisors (see below), whose sum is σ = 30003166656. Its totient is φ = 10001055550.

The previous prime is 20002111099. The next prime is 20002111117. The reversal of 20002111102 is 20111120002.

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

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, 5000527774 + ... + 5000527777.

It is an arithmetic number, because the mean of its divisors is an integer number (7500791664).

Almost surely, 2^20002111102 is an apocalyptic number.

20002111102 is a deficient number, since it is larger than the sum of its proper divisors (10001055554).

20002111102 is a wasteful number, since it uses less digits than its factorization.

20002111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001055553.

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

Adding to 20002111102 its reverse (20111120002), we get a palindrome (40113231104).

The spelling of 20002111102 in words is "twenty billion, two million, one hundred eleven thousand, one hundred two".