2221123333200 has 120 divisors (see below), whose sum is σ = 7117631400768. Its totient is φ = 592080368640.

The previous prime is 2221123333193. The next prime is 2221123333201. The reversal of 2221123333200 is 23333211222.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×2221123333200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221123333201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2914477 + ... + 3596723.

Almost surely, 2^{2221123333200} is an apocalyptic number.

2221123333200 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 2221123333200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3558815700384).

2221123333200 is an abundant number, since it is smaller than the sum of its proper divisors (4896508067568).

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

2221123333200 is a wasteful number, since it uses less digits than its factorization.

2221123333200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684981 (or 684970 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 2221123333200 its reverse (23333211222), we get a palindrome (2244456544422).

The spelling of 2221123333200 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, three hundred thirty-three thousand, two hundred".