2012223312 has 60 divisors (see below), whose sum is σ = 6143383584. Its totient is φ = 609764160.

The previous prime is 2012223307. The next prime is 2012223331. The reversal of 2012223312 is 2133222102.

It is a super-4 number, since 4×2012223312⁴ (a number of 38 digits) contains 4444 as substring.

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

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, 633588 + ... + 636755.

Almost surely, 2^2012223312 is an apocalyptic number.

2012223312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2012223312 is an abundant number, since it is smaller than the sum of its proper divisors (4131160272).

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

2012223312 is a wasteful number, since it uses less digits than its factorization.

2012223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270368 (or 1270359 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2012223312 is about 44857.8121624316. The cubic root of 2012223312 is about 1262.4825732588.

Adding to 2012223312 its reverse (2133222102), we get a palindrome (4145445414).

It can be divided in two parts, 20122 and 23312, that added together give a palindrome (43434).

The spelling of 2012223312 in words is "two billion, twelve million, two hundred twenty-three thousand, three hundred twelve".