201222112221200 has 120 divisors (see below), whose sum is σ = 563773906636800. Its totient is φ = 68990438428800.

The previous prime is 201222112221127. The next prime is 201222112221307. The reversal of 201222112221200 is 2122211222102.

It is a super-2 number, since 2×201222112221200² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 733179536 + ... + 733453935.

It is an arithmetic number, because the mean of its divisors is an integer number (4698115888640).

Almost surely, 2^{201222112221200} is an apocalyptic number.

201222112221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222112221200 is an abundant number, since it is smaller than the sum of its proper divisors (362551794415600).

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

201222112221200 is a wasteful number, since it uses less digits than its factorization.

201222112221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466633510 (or 1466633485 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201222112221200 its reverse (2122211222102), we get a palindrome (203344323443302).

The spelling of 201222112221200 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, two hundred".