22265210000000 has 384 divisors, whose sum is σ = 60947483622480. Its totient is φ = 8096000000000.

The previous prime is 22265209999979. The next prime is 22265210000039. The reversal of 22265210000000 is 1256222.

It can be written as a sum of positive squares in 8 ways, for example, as 20749336860736 + 1515873139264 = 4555144^2 + 1231208^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1209990800 + ... + 1210009200.

Almost surely, 2^{22265210000000} is an apocalyptic number.

22265210000000 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 22265210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30473741811240).

22265210000000 is an abundant number, since it is smaller than the sum of its proper divisors (38682273622480).

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

22265210000000 is an frugal number, since it uses more digits than its factorization.

22265210000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472 (or 18419 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22265210000000 its reverse (1256222), we get a palindrome (22265211256222).

The spelling of 22265210000000 in words is "twenty-two trillion, two hundred sixty-five billion, two hundred ten million", and thus it is an aban number.