20021101000102 has 4 divisors (see below), whose sum is σ = 30031651500156. Its totient is φ = 10010550500050.

The previous prime is 20021101000097. The next prime is 20021101000127. The reversal of 20021101000102 is 20100010112002.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005275250024 + ... + 5005275250027.

It is an arithmetic number, because the mean of its divisors is an integer number (7507912875039).

Almost surely, 2^{20021101000102} is an apocalyptic number.

20021101000102 is a deficient number, since it is larger than the sum of its proper divisors (10010550500054).

20021101000102 is a wasteful number, since it uses less digits than its factorization.

20021101000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010550500053.

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

Adding to 20021101000102 its reverse (20100010112002), we get a palindrome (40121111112104).

The spelling of 20021101000102 in words is "twenty trillion, twenty-one billion, one hundred one million, one hundred two", and thus it is an aban number.