3223220218 has 4 divisors (see below), whose sum is σ = 4834830330. Its totient is φ = 1611610108.

The previous prime is 3223220201. The next prime is 3223220269. The reversal of 3223220218 is 8120223223.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2450547009 + 772673209 = 49503^2 + 27797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3223220192 and 3223220201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805805053 + ... + 805805056.

Almost surely, 2^3223220218 is an apocalyptic number.

3223220218 is a deficient number, since it is larger than the sum of its proper divisors (1611610112).

3223220218 is a wasteful number, since it uses less digits than its factorization.

3223220218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611610111.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3223220218 is about 56773.4111886894. The cubic root of 3223220218 is about 1477.1683466685.

The spelling of 3223220218 in words is "three billion, two hundred twenty-three million, two hundred twenty thousand, two hundred eighteen".