1211210222 has 8 divisors (see below), whose sum is σ = 1895807376. Its totient is φ = 579274432.

The previous prime is 1211210183. The next prime is 1211210243. The reversal of 1211210222 is 2220121121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211210197 and 1211210206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13165283 + ... + 13165374.

It is an arithmetic number, because the mean of its divisors is an integer number (236975922).

Almost surely, 2^1211210222 is an apocalyptic number.

1211210222 is a deficient number, since it is larger than the sum of its proper divisors (684597154).

1211210222 is a wasteful number, since it uses less digits than its factorization.

1211210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26330682.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1211210222 is about 34802.4456324552. The cubic root of 1211210222 is about 1065.9573843033.

Adding to 1211210222 its reverse (2220121121), we get a palindrome (3431331343).

The spelling of 1211210222 in words is "one billion, two hundred eleven million, two hundred ten thousand, two hundred twenty-two".