222213404 has 24 divisors (see below), whose sum is σ = 447266400. Its totient is φ = 94625856.

The previous prime is 222213403. The next prime is 222213413. The reversal of 222213404 is 404312222.

It is a super-3 number, since 3×222213404³ (a number of 26 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 20879 + ... + 29670.

It is an arithmetic number, because the mean of its divisors is an integer number (18636100).

Almost surely, 2^222213404 is an apocalyptic number.

It is an amenable number.

222213404 is an abundant number, since it is smaller than the sum of its proper divisors (225052996).

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

222213404 is a wasteful number, since it uses less digits than its factorization.

222213404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50717 (or 50715 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 222213404 is about 14906.8240748994. The cubic root of 222213404 is about 605.6988522848.

Adding to 222213404 its reverse (404312222), we get a palindrome (626525626).

The spelling of 222213404 in words is "two hundred twenty-two million, two hundred thirteen thousand, four hundred four".