212223001200 has 240 divisors, whose sum is σ = 787583567616. Its totient is φ = 47843481600.

The previous prime is 212223001163. The next prime is 212223001229. The reversal of 212223001200 is 2100322212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212223001200.

It is a congruent number.

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, 440155 + ... + 786245.

Almost surely, 2^212223001200 is an apocalyptic number.

212223001200 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 212223001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393791783808).

212223001200 is an abundant number, since it is smaller than the sum of its proper divisors (575360566416).

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

212223001200 is a wasteful number, since it uses less digits than its factorization.

212223001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346192 (or 346181 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212223001200 its reverse (2100322212), we get a palindrome (214323323412).

The spelling of 212223001200 in words is "two hundred twelve billion, two hundred twenty-three million, one thousand, two hundred".