20020021102102 has 64 divisors (see below), whose sum is σ = 34890516850176. Its totient is φ = 8437829875200.

The previous prime is 20020021102049. The next prime is 20020021102111. The reversal of 20020021102102 is 20120112002002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1472378368 + ... + 1472391964.

It is an arithmetic number, because the mean of its divisors is an integer number (545164325784).

Almost surely, 2^{20020021102102} is an apocalyptic number.

20020021102102 is a deficient number, since it is larger than the sum of its proper divisors (14870495748074).

20020021102102 is a wasteful number, since it uses less digits than its factorization.

20020021102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16181.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020021102102 its reverse (20120112002002), we get a palindrome (40140133104104).

The spelling of 20020021102102 in words is "twenty trillion, twenty billion, twenty-one million, one hundred two thousand, one hundred two".