1211043222 has 24 divisors (see below), whose sum is σ = 2628419976. Its totient is φ = 402989856.

The previous prime is 1211043217. The next prime is 1211043233. The reversal of 1211043222 is 2223401121.

It is a happy number.

1211043222 is a `hidden beast` number, since 1 + 211 + 0 + 432 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1211043195 and 1211043204.

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, 46743 + ... + 67874.

It is an arithmetic number, because the mean of its divisors is an integer number (109517499).

Almost surely, 2^1211043222 is an apocalyptic number.

1211043222 is an abundant number, since it is smaller than the sum of its proper divisors (1417376754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211043222 is a wasteful number, since it uses less digits than its factorization.

1211043222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115212 (or 115209 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1211043222 is about 34800.0462930727. The cubic root of 1211043222 is about 1065.9083911387.

Adding to 1211043222 its reverse (2223401121), we get a palindrome (3434444343).

The spelling of 1211043222 in words is "one billion, two hundred eleven million, forty-three thousand, two hundred twenty-two".