20110211112 has 64 divisors (see below), whose sum is σ = 51799988160. Its totient is φ = 6503155200.

The previous prime is 20110211089. The next prime is 20110211123. The reversal of 20110211112 is 21111201102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12787 + ... + 200957.

It is an arithmetic number, because the mean of its divisors is an integer number (809374815).

Almost surely, 2^20110211112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110211112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25899994080).

20110211112 is an abundant number, since it is smaller than the sum of its proper divisors (31689777048).

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

20110211112 is a wasteful number, since it uses less digits than its factorization.

20110211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188314 (or 188310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20110211112 its reverse (21111201102), we get a palindrome (41221412214).

The spelling of 20110211112 in words is "twenty billion, one hundred ten million, two hundred eleven thousand, one hundred twelve".