1222210222 has 8 divisors (see below), whose sum is σ = 1841392296. Its totient is φ = 608412792.

The previous prime is 1222210217. The next prime is 1222210229. The reversal of 1222210222 is 2220122221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1222210222² = 2987595653522578568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222210196 and 1222210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222210229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345593 + ... + 1346500.

It is an arithmetic number, because the mean of its divisors is an integer number (230174037).

Almost surely, 2^1222210222 is an apocalyptic number.

1222210222 is a deficient number, since it is larger than the sum of its proper divisors (619182074).

1222210222 is a wasteful number, since it uses less digits than its factorization.

1222210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692322.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1222210222 is about 34960.1233121395. The cubic root of 1222210222 is about 1069.1746107940.

Adding to 1222210222 its reverse (2220122221), we get a palindrome (3442332443).

The spelling of 1222210222 in words is "one billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".