222012012 has 24 divisors (see below), whose sum is σ = 518604912. Its totient is φ = 73921600.

The previous prime is 222011981. The next prime is 222012019. The reversal of 222012012 is 210210222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (222012019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462 + ... + 21122.

It is an arithmetic number, because the mean of its divisors is an integer number (21608538).

Almost surely, 2^222012012 is an apocalyptic number.

It is an amenable number.

222012012 is an abundant number, since it is smaller than the sum of its proper divisors (296592900).

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

222012012 is a wasteful number, since it uses less digits than its factorization.

222012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20609 (or 20607 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 222012012 is about 14900.0675166256. The cubic root of 222012012 is about 605.5158153622.

Adding to 222012012 its reverse (210210222), we get a palindrome (432222234).

The spelling of 222012012 in words is "two hundred twenty-two million, twelve thousand, twelve".