222042421200 has 120 divisors (see below), whose sum is σ = 716468214528. Its totient is φ = 58779069440.

The previous prime is 222042421193. The next prime is 222042421201. The reversal of 222042421200 is 2124240222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222042421201) 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, 510912 + ... + 839711.

Almost surely, 2^222042421200 is an apocalyptic number.

222042421200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222042421200 is an abundant number, since it is smaller than the sum of its proper divisors (494425793328).

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

222042421200 is a wasteful number, since it uses less digits than its factorization.

222042421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350781 (or 1350770 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222042421200 its reverse (2124240222), we get a palindrome (224166661422).

The spelling of 222042421200 in words is "two hundred twenty-two billion, forty-two million, four hundred twenty-one thousand, two hundred".