20021010110012 has 24 divisors (see below), whose sum is σ = 35693765577792. Its totient is φ = 9823552891200.

The previous prime is 20021010110011. The next prime is 20021010110053. The reversal of 20021010110012 is 21001101012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021010109975 and 20021010110002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021010110011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95084303 + ... + 95294630.

It is an arithmetic number, because the mean of its divisors is an integer number (1487240232408).

Almost surely, 2^{20021010110012} is an apocalyptic number.

It is an amenable number.

20021010110012 is a deficient number, since it is larger than the sum of its proper divisors (15672755467780).

20021010110012 is a wasteful number, since it uses less digits than its factorization.

20021010110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190379429 (or 190379427 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20021010110012 its reverse (21001101012002), we get a palindrome (41022111122014).

The spelling of 20021010110012 in words is "twenty trillion, twenty-one billion, ten million, one hundred ten thousand, twelve".