222001222111200 has 576 divisors, whose sum is σ = 917707952931840. Its totient is φ = 50737446144000.

The previous prime is 222001222111187. The next prime is 222001222111241. The reversal of 222001222111200 is 2111222100222.

It is a happy number.

222001222111200 is a `hidden beast` number, since 2 + 220 + 0 + 12 + 221 + 11 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1430425605 + ... + 1430580795.

It is an arithmetic number, because the mean of its divisors is an integer number (1593242973840).

Almost surely, 2^{222001222111200} is an apocalyptic number.

222001222111200 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 222001222111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458853976465920).

222001222111200 is an abundant number, since it is smaller than the sum of its proper divisors (695706730820640).

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

222001222111200 is a wasteful number, since it uses less digits than its factorization.

222001222111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164688 (or 164669 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222001222111200 its reverse (2111222100222), we get a palindrome (224112444211422).

The spelling of 222001222111200 in words is "two hundred twenty-two trillion, one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred".