1211030031222 has 24 divisors (see below), whose sum is σ = 2862434619720. Its totient is φ = 366978797280.

The previous prime is 1211030031209. The next prime is 1211030031227. The reversal of 1211030031222 is 2221300301121.

1211030031222 is a `hidden beast` number, since 1 + 2 + 110 + 300 + 31 + 222 = 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 = 1211030031195 and 1211030031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211030031227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3058156447 + ... + 3058156842.

It is an arithmetic number, because the mean of its divisors is an integer number (119268109155).

Almost surely, 2^{1211030031222} is an apocalyptic number.

1211030031222 is an abundant number, since it is smaller than the sum of its proper divisors (1651404588498).

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

1211030031222 is a wasteful number, since it uses less digits than its factorization.

1211030031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116313308 (or 6116313305 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1211030031222 its reverse (2221300301121), we get a palindrome (3432330332343).

The spelling of 1211030031222 in words is "one trillion, two hundred eleven billion, thirty million, thirty-one thousand, two hundred twenty-two".