22002221012112 has 120 divisors (see below), whose sum is σ = 67198275300000. Its totient is φ = 6664875402240.

The previous prime is 22002221012111. The next prime is 22002221012143. The reversal of 22002221012112 is 21121012220022.

It is a happy number.

22002221012112 is a `hidden beast` number, since 220 + 0 + 22 + 210 + 1 + 211 + 2 = 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 (22002221012111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1722264 + ... + 6853512.

It is an arithmetic number, because the mean of its divisors is an integer number (559985627500).

Almost surely, 2^{22002221012112} is an apocalyptic number.

22002221012112 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 22002221012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33599137650000).

22002221012112 is an abundant number, since it is smaller than the sum of its proper divisors (45196054287888).

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

22002221012112 is a wasteful number, since it uses less digits than its factorization.

22002221012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133981 (or 5133972 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22002221012112 its reverse (21121012220022), we get a palindrome (43123233232134).

The spelling of 22002221012112 in words is "twenty-two trillion, two billion, two hundred twenty-one million, twelve thousand, one hundred twelve".