20222102111112 has 256 divisors, whose sum is σ = 63907987046400. Its totient is φ = 5869096704000.

The previous prime is 20222102111051. The next prime is 20222102111173. The reversal of 20222102111112 is 21111120122202.

It is an interprime number because it is at equal distance from previous prime (20222102111051) and next prime (20222102111173).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5729437 + ... + 8559827.

It is an arithmetic number, because the mean of its divisors is an integer number (249640574400).

Almost surely, 2^{20222102111112} is an apocalyptic number.

20222102111112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222102111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31953993523200).

20222102111112 is an abundant number, since it is smaller than the sum of its proper divisors (43685884935288).

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

20222102111112 is a wasteful number, since it uses less digits than its factorization.

20222102111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830545 (or 2830535 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20222102111112 its reverse (21111120122202), we get a palindrome (41333222233314).

The spelling of 20222102111112 in words is "twenty trillion, two hundred twenty-two billion, one hundred two million, one hundred eleven thousand, one hundred twelve".