1211102222 has 24 divisors (see below), whose sum is σ = 2001616920. Its totient is φ = 545051280.

The previous prime is 1211102183. The next prime is 1211102257. The reversal of 1211102222 is 2222011121.

It is a junction number, because it is equal to n+sod(n) for n = 1211102197 and 1211102206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230804 + ... + 235992.

It is an arithmetic number, because the mean of its divisors is an integer number (83400705).

Almost surely, 2^1211102222 is an apocalyptic number.

1211102222 is a deficient number, since it is larger than the sum of its proper divisors (790514698).

1211102222 is a wasteful number, since it uses less digits than its factorization.

1211102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408 (or 5305 counting only the distinct ones).

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

The square root of 1211102222 is about 34800.8939827700. The cubic root of 1211102222 is about 1065.9257006156.

Adding to 1211102222 its reverse (2222011121), we get a palindrome (3433113343).

The spelling of 1211102222 in words is "one billion, two hundred eleven million, one hundred two thousand, two hundred twenty-two".