20011002012102 has 32 divisors (see below), whose sum is σ = 41099437255680. Its totient is φ = 6493140239040.

The previous prime is 20011002012101. The next prime is 20011002012121. The reversal of 20011002012102 is 20121020011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011002012101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297271303 + ... + 297338610.

It is an arithmetic number, because the mean of its divisors is an integer number (1284357414240).

Almost surely, 2^{20011002012102} is an apocalyptic number.

20011002012102 is an abundant number, since it is smaller than the sum of its proper divisors (21088435243578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011002012102 is a wasteful number, since it uses less digits than its factorization.

20011002012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594610068.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011002012102 its reverse (20121020011002), we get a palindrome (40132022023104).

The spelling of 20011002012102 in words is "twenty trillion, eleven billion, two million, twelve thousand, one hundred two".