22002222021012 has 144 divisors (see below), whose sum is σ = 58923473889280. Its totient is φ = 6911484148800.

The previous prime is 22002222020971. The next prime is 22002222021041. The reversal of 22002222021012 is 21012022220022.

22002222021012 is a `hidden beast` number, since 2 + 200 + 22 + 220 + 210 + 12 = 666.

22002222021012 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15191439 + ... + 16576617.

Almost surely, 2^{22002222021012} 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 22002222021012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29461736944640).

22002222021012 is an abundant number, since it is smaller than the sum of its proper divisors (36921251868268).

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

22002222021012 is a wasteful number, since it uses less digits than its factorization.

22002222021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385594 (or 1385589 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22002222021012 its reverse (21012022220022), we get a palindrome (43014244241034).

The spelling of 22002222021012 in words is "twenty-two trillion, two billion, two hundred twenty-two million, twenty-one thousand, twelve".