222221221022200 has 24 divisors (see below), whose sum is σ = 516664338877080. Its totient is φ = 88888488408800.

The previous prime is 222221221022161. The next prime is 222221221022201. The reversal of 222221221022200 is 2220122122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221221022201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555553052356 + ... + 555553052755.

It is an arithmetic number, because the mean of its divisors is an integer number (21527680786545).

Almost surely, 2^{222221221022200} is an apocalyptic number.

222221221022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221221022200 is an abundant number, since it is smaller than the sum of its proper divisors (294443117854880).

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

222221221022200 is a wasteful number, since it uses less digits than its factorization.

222221221022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111106105127 (or 1111106105118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222221221022200 its reverse (2220122122222), we get a palindrome (224441343144422).

The spelling of 222221221022200 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty-two thousand, two hundred".