273222012 has 24 divisors (see below), whose sum is σ = 728592256. Its totient is φ = 78063408.

The previous prime is 273221981. The next prime is 273222013. The reversal of 273222012 is 210222372.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 273222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626238 + ... + 1626405.

Almost surely, 2^273222012 is an apocalyptic number.

It is an amenable number.

273222012 is an abundant number, since it is smaller than the sum of its proper divisors (455370244).

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

273222012 is a wasteful number, since it uses less digits than its factorization.

273222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252657 (or 3252655 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 273222012 is about 16529.4286652625. The cubic root of 273222012 is about 648.8912158015.

Adding to 273222012 its reverse (210222372), we get a palindrome (483444384).

The spelling of 273222012 in words is "two hundred seventy-three million, two hundred twenty-two thousand, twelve".