1212200222011 has 16 divisors (see below), whose sum is σ = 1230543659520. Its totient is φ = 1194026296320.

The previous prime is 1212200221963. The next prime is 1212200222029. The reversal of 1212200222011 is 1102220022121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1212200222011 - 2⁹ = 1212200221499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212200222071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10329955 + ... + 10446643.

It is an arithmetic number, because the mean of its divisors is an integer number (76908978720).

Almost surely, 2^{1212200222011} is an apocalyptic number.

1212200222011 is a deficient number, since it is larger than the sum of its proper divisors (18343437509).

1212200222011 is a wasteful number, since it uses less digits than its factorization.

1212200222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117414.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212200222011 its reverse (1102220022121), we get a palindrome (2314420244132).

The spelling of 1212200222011 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred twenty-two thousand, eleven".