22001022220212 has 144 divisors (see below), whose sum is σ = 65772785420160. Its totient is φ = 6067160983296.

The previous prime is 22001022220189. The next prime is 22001022220223. The reversal of 22001022220212 is 21202222010022.

22001022220212 is a `hidden beast` number, since 2 + 200 + 10 + 22 + 220 + 212 = 666.

22001022220212 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 (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20801403 + ... + 21833469.

Almost surely, 2^{22001022220212} 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 22001022220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32886392710080).

22001022220212 is an abundant number, since it is smaller than the sum of its proper divisors (43771763199948).

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

22001022220212 is a wasteful number, since it uses less digits than its factorization.

22001022220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035030 (or 1035025 counting only the distinct ones).

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

Adding to 22001022220212 its reverse (21202222010022), we get a palindrome (43203244230234).

The spelling of 22001022220212 in words is "twenty-two trillion, one billion, twenty-two million, two hundred twenty thousand, two hundred twelve".