1212031422 has 192 divisors, whose sum is σ = 3352212864. Its totient is φ = 308551680.

The previous prime is 1212031409. The next prime is 1212031427. The reversal of 1212031422 is 2241302121.

It is a happy number.

1212031422 is a `hidden beast` number, since 1 + 212 + 0 + 31 + 422 = 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 = 1212031395 and 1212031404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212031427) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3249228 + ... + 3249600.

It is an arithmetic number, because the mean of its divisors is an integer number (17459442).

Almost surely, 2^1212031422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212031422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676106432).

1212031422 is an abundant number, since it is smaller than the sum of its proper divisors (2140181442).

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

1212031422 is a wasteful number, since it uses less digits than its factorization.

1212031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 480 counting only the distinct ones).

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

The square root of 1212031422 is about 34814.2416548171. The cubic root of 1212031422 is about 1066.1982360923.

Adding to 1212031422 its reverse (2241302121), we get a palindrome (3453333543).

The spelling of 1212031422 in words is "one billion, two hundred twelve million, thirty-one thousand, four hundred twenty-two".