1243210222 has 16 divisors (see below), whose sum is σ = 1930257360. Its totient is φ = 599816448.

The previous prime is 1243210217. The next prime is 1243210231. The reversal of 1243210222 is 2220123421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111673 + ... + 122299.

It is an arithmetic number, because the mean of its divisors is an integer number (120641085).

Almost surely, 2^1243210222 is an apocalyptic number.

1243210222 is a deficient number, since it is larger than the sum of its proper divisors (687047138).

1243210222 is a wasteful number, since it uses less digits than its factorization.

1243210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1243210222 is about 35259.1863490921. The cubic root of 1243210222 is about 1075.2633851114.

Adding to 1243210222 its reverse (2220123421), we get a palindrome (3463333643).

The spelling of 1243210222 in words is "one billion, two hundred forty-three million, two hundred ten thousand, two hundred twenty-two".