20021021120102 has 8 divisors (see below), whose sum is σ = 30297297447576. Its totient is φ = 9921921970912.

The previous prime is 20021021120099. The next prime is 20021021120117. The reversal of 20021021120102 is 20102112012002.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44294294288 + ... + 44294294739.

It is an arithmetic number, because the mean of its divisors is an integer number (3787162180947).

Almost surely, 2^{20021021120102} is an apocalyptic number.

20021021120102 is a deficient number, since it is larger than the sum of its proper divisors (10276276327474).

20021021120102 is a wasteful number, since it uses less digits than its factorization.

20021021120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88588589142.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021021120102 its reverse (20102112012002), we get a palindrome (40123133132104).

The spelling of 20021021120102 in words is "twenty trillion, twenty-one billion, twenty-one million, one hundred twenty thousand, one hundred two".