20001002120102 has 8 divisors (see below), whose sum is σ = 30040926971112. Its totient is φ = 9987359796400.

The previous prime is 20001002120081. The next prime is 20001002120111. The reversal of 20001002120102 is 20102120010002.

It is a happy number.

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, 6570629924 + ... + 6570632967.

It is an arithmetic number, because the mean of its divisors is an integer number (3755115871389).

Almost surely, 2^{20001002120102} is an apocalyptic number.

20001002120102 is a deficient number, since it is larger than the sum of its proper divisors (10039924851010).

20001002120102 is a wasteful number, since it uses less digits than its factorization.

20001002120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141263654.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001002120102 its reverse (20102120010002), we get a palindrome (40103122130104).

The spelling of 20001002120102 in words is "twenty trillion, one billion, two million, one hundred twenty thousand, one hundred two".