22223534212000 has 288 divisors, whose sum is σ = 60173218057680. Its totient is φ = 8060442368000.

The previous prime is 22223534211979. The next prime is 22223534212007. The reversal of 22223534212000 is 21243532222.

It can be written as a sum of positive squares in 8 ways, for example, as 644550544 + 22222889661456 = 25388^2 + 4714116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22223534212000.

It is not an unprimeable number, because it can be changed into a prime (22223534212007) 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, 188216982 + ... + 188335018.

Almost surely, 2^{22223534212000} is an apocalyptic number.

22223534212000 is a gapful number since it is divisible by the number (20) 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 22223534212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30086609028840).

22223534212000 is an abundant number, since it is smaller than the sum of its proper divisors (37949683845680).

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

22223534212000 is a wasteful number, since it uses less digits than its factorization.

22223534212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118473 (or 118444 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 22223534212000 its reverse (21243532222), we get a palindrome (22244777744222).

The spelling of 22223534212000 in words is "twenty-two trillion, two hundred twenty-three billion, five hundred thirty-four million, two hundred twelve thousand".