222100022221012 has 24 divisors (see below), whose sum is σ = 419758878379176. Its totient is φ = 102217312462848.

The previous prime is 222100022221001. The next prime is 222100022221019. The reversal of 222100022221012 is 210122220001222.

It can be written as a sum of positive squares in 4 ways, for example, as 529771445316 + 221570250775696 = 727854^2 + 14885236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100022221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6049775233 + ... + 6049811944.

It is an arithmetic number, because the mean of its divisors is an integer number (17489953265799).

Almost surely, 2^{222100022221012} is an apocalyptic number.

It is an amenable number.

222100022221012 is a deficient number, since it is larger than the sum of its proper divisors (197658856158164).

222100022221012 is a wasteful number, since it uses less digits than its factorization.

222100022221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099587547 (or 12099587545 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222100022221012 its reverse (210122220001222), we get a palindrome (432222242222234).

The spelling of 222100022221012 in words is "two hundred twenty-two trillion, one hundred billion, twenty-two million, two hundred twenty-one thousand, twelve".