222213400 has 24 divisors (see below), whose sum is σ = 516646620. Its totient is φ = 88885280.

The previous prime is 222213389. The next prime is 222213401. The reversal of 222213400 is 4312222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222213401) 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, 555334 + ... + 555733.

Almost surely, 2^222213400 is an apocalyptic number.

222213400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222213400 is an abundant number, since it is smaller than the sum of its proper divisors (294433220).

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

222213400 is a wasteful number, since it uses less digits than its factorization.

222213400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111083 (or 1111074 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222213400 is about 14906.8239407326. The cubic root of 222213400 is about 605.6988486505.

Adding to 222213400 its reverse (4312222), we get a palindrome (226525622).

The spelling of 222213400 in words is "two hundred twenty-two million, two hundred thirteen thousand, four hundred".