266112220000 has 240 divisors, whose sum is σ = 756213896592. Its totient is φ = 91074560000.

The previous prime is 266112219979. The next prime is 266112220067. The reversal of 266112220000 is 22211662.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3704424 + ... + 3775576.

Almost surely, 2^266112220000 is an apocalyptic number.

266112220000 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 266112220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378106948296).

266112220000 is an abundant number, since it is smaller than the sum of its proper divisors (490101676592).

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

266112220000 is a wasteful number, since it uses less digits than its factorization.

266112220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71211 (or 71188 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 266112220000 its reverse (22211662), we get a palindrome (266134431662).

The spelling of 266112220000 in words is "two hundred sixty-six billion, one hundred twelve million, two hundred twenty thousand".