222002012212 has 12 divisors (see below), whose sum is σ = 388507204260. Its totient is φ = 110999953856.

The previous prime is 222002012173. The next prime is 222002012213. The reversal of 222002012212 is 212210200222.

It can be written as a sum of positive squares in 2 ways, for example, as 136150668196 + 85851344016 = 368986^2 + 293004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393978 + ... + 774094.

It is an arithmetic number, because the mean of its divisors is an integer number (32375600355).

Almost surely, 2^222002012212 is an apocalyptic number.

It is an amenable number.

222002012212 is a deficient number, since it is larger than the sum of its proper divisors (166505192048).

222002012212 is a wasteful number, since it uses less digits than its factorization.

222002012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526130 (or 526128 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222002012212 its reverse (212210200222), we get a palindrome (434212212434).

The spelling of 222002012212 in words is "two hundred twenty-two billion, two million, twelve thousand, two hundred twelve".