22210000000000 has 242 divisors, whose sum is σ = 55522874839454. Its totient is φ = 8880000000000.

The previous prime is 22209999999973. The next prime is 22210000000009. The reversal of 22210000000000 is 1222.

It is a happy number.

It can be written as a sum of positive squares in 11 ways, for example, as 1112366777344 + 21097633222656 = 1054688^2 + 4593216^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210000000009) by changing a digit.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 9999998890 + ... + 10000001110.

Almost surely, 2^{22210000000000} is an apocalyptic number.

22210000000000 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 22210000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27761437419727).

22210000000000 is an abundant number, since it is smaller than the sum of its proper divisors (33312874839454).

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

22210000000000 is an frugal number, since it uses more digits than its factorization.

22210000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 22210000000000 its reverse (1222), we get a palindrome (22210000001222).

The spelling of 22210000000000 in words is "twenty-two trillion, two hundred ten billion", and thus it is an aban number.