20102101112 has 32 divisors (see below), whose sum is σ = 39961926720. Its totient is φ = 9447168000.

The previous prime is 20102101111. The next prime is 20102101127. The reversal of 20102101112 is 21110120102.

It is a junction number, because it is equal to n+sod(n) for n = 20102101093 and 20102101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102101111) 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, 3728 + ... + 200544.

It is an arithmetic number, because the mean of its divisors is an integer number (1248810210).

Almost surely, 2^20102101112 is an apocalyptic number.

It is an amenable number.

20102101112 is a deficient number, since it is larger than the sum of its proper divisors (19859825608).

20102101112 is a wasteful number, since it uses less digits than its factorization.

20102101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197591 (or 197587 counting only the distinct ones).

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

Adding to 20102101112 its reverse (21110120102), we get a palindrome (41212221214).

The spelling of 20102101112 in words is "twenty billion, one hundred two million, one hundred one thousand, one hundred twelve".