22103111110212 has 144 divisors (see below), whose sum is σ = 62195640212160. Its totient is φ = 6561914169600.

The previous prime is 22103111110207. The next prime is 22103111110219. The reversal of 22103111110212 is 21201111130122.

It is a happy number.

22103111110212 is a `hidden beast` number, since 22 + 10 + 311 + 1 + 110 + 212 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22103111110219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5231262 + ... + 8460042.

It is an arithmetic number, because the mean of its divisors is an integer number (431914168140).

Almost surely, 2^{22103111110212} is an apocalyptic number.

22103111110212 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 22103111110212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31097820106080).

22103111110212 is an abundant number, since it is smaller than the sum of its proper divisors (40092529101948).

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

22103111110212 is a wasteful number, since it uses less digits than its factorization.

22103111110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229154 (or 3229149 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 22103111110212 its reverse (21201111130122), we get a palindrome (43304222240334).

The spelling of 22103111110212 in words is "twenty-two trillion, one hundred three billion, one hundred eleven million, one hundred ten thousand, two hundred twelve".