220222122212 has 24 divisors (see below), whose sum is σ = 387858667896. Its totient is φ = 109406156288.

The previous prime is 220222122199. The next prime is 220222122251. The reversal of 220222122212 is 212221222022.

It can be written as a sum of positive squares in 4 ways, for example, as 33964278436 + 186257843776 = 184294^2 + 431576^2 .

It is a super-2 number, since 2×220222122212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1017548 + ... + 1214844.

It is an arithmetic number, because the mean of its divisors is an integer number (16160777829).

Almost surely, 2^220222122212 is an apocalyptic number.

It is an amenable number.

220222122212 is a deficient number, since it is larger than the sum of its proper divisors (167636545684).

220222122212 is a wasteful number, since it uses less digits than its factorization.

220222122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199087 (or 199085 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220222122212 its reverse (212221222022), we get a palindrome (432443344234).

The spelling of 220222122212 in words is "two hundred twenty billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".