1212200210001 has 16 divisors (see below), whose sum is σ = 1764678317760. Its totient is φ = 734050955520.

The previous prime is 1212200209999. The next prime is 1212200210009. The reversal of 1212200210001 is 1000120022121.

It is not a de Polignac number, because 1212200210001 - 2¹ = 1212200209999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212200210009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15355996 + ... + 15434733.

It is an arithmetic number, because the mean of its divisors is an integer number (110292394860).

Almost surely, 2^{1212200210001} is an apocalyptic number.

1212200210001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212200210001 is a deficient number, since it is larger than the sum of its proper divisors (552478107759).

1212200210001 is a wasteful number, since it uses less digits than its factorization.

1212200210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30791936.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212200210001 its reverse (1000120022121), we get a palindrome (2212320232122).

The spelling of 1212200210001 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred ten thousand, one".