22022200121012 has 96 divisors (see below), whose sum is σ = 47618965497600. Its totient is φ = 8677831698432.

The previous prime is 22022200120967. The next prime is 22022200121029. The reversal of 22022200121012 is 21012100222022.

It is a happy number.

It is a super-3 number, since 3×22022200121012³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512372939 + ... + 512415917.

It is an arithmetic number, because the mean of its divisors is an integer number (496030890600).

Almost surely, 2^{22022200121012} 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 22022200121012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23809482748800).

22022200121012 is an abundant number, since it is smaller than the sum of its proper divisors (25596765376588).

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

22022200121012 is a wasteful number, since it uses less digits than its factorization.

22022200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48505 (or 48503 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22022200121012 its reverse (21012100222022), we get a palindrome (43034300343034).

The spelling of 22022200121012 in words is "twenty-two trillion, twenty-two billion, two hundred million, one hundred twenty-one thousand, twelve".