1204312212 has 60 divisors (see below), whose sum is σ = 3155854240. Its totient is φ = 400475664.

The previous prime is 1204312199. The next prime is 1204312217. The reversal of 1204312212 is 2122134021.

It is a happy number.

1204312212 is a `hidden beast` number, since 1 + 20 + 431 + 2 + 212 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204312217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 138003 + ... + 146469.

Almost surely, 2^1204312212 is an apocalyptic number.

1204312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204312212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577927120).

1204312212 is an abundant number, since it is smaller than the sum of its proper divisors (1951542028).

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

1204312212 is a wasteful number, since it uses less digits than its factorization.

1204312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922 (or 8911 counting only the distinct ones).

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

The square root of 1204312212 is about 34703.2017543050. The cubic root of 1204312212 is about 1063.9299389016.

Adding to 1204312212 its reverse (2122134021), we get a palindrome (3326446233).

The spelling of 1204312212 in words is "one billion, two hundred four million, three hundred twelve thousand, two hundred twelve".