20021102110102 has 8 divisors (see below), whose sum is σ = 30031679683512. Its totient is φ = 10010542215600.

The previous prime is 20021102110091. The next prime is 20021102110133. The reversal of 20021102110102 is 20101120112002.

It is a sphenic number, since it is the product of 3 distinct 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 in 3 ways as a sum of consecutive naturals, for example, 1085424 + ... + 6420307.

It is an arithmetic number, because the mean of its divisors is an integer number (3753959960439).

Almost surely, 2^{20021102110102} is an apocalyptic number.

20021102110102 is a deficient number, since it is larger than the sum of its proper divisors (10010577573410).

20021102110102 is a wasteful number, since it uses less digits than its factorization.

20021102110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839454.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021102110102 its reverse (20101120112002), we get a palindrome (40122222222104).

The spelling of 20021102110102 in words is "twenty trillion, twenty-one billion, one hundred two million, one hundred ten thousand, one hundred two".