1212210000001 has 64 divisors (see below), whose sum is σ = 1673447473152. Its totient is φ = 847506240000.

The previous prime is 1212209999971. The next prime is 1212210000037. The reversal of 1212210000001 is 1000000122121.

It is not a de Polignac number, because 1212210000001 - 2¹⁵ = 1212209967233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212210000901) 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 63 ways as a sum of consecutive naturals, for example, 11067616 + ... + 11176606.

It is an arithmetic number, because the mean of its divisors is an integer number (26147616768).

Almost surely, 2^{1212210000001} is an apocalyptic number.

1212210000001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212210000001 is a deficient number, since it is larger than the sum of its proper divisors (461237473151).

1212210000001 is a wasteful number, since it uses less digits than its factorization.

1212210000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109334.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1212210000001 its reverse (1000000122121), we get a palindrome (2212210122122).

It can be divided in two parts, 121 and 2210000001, that added together give a palindrome (2210000122).

The spelling of 1212210000001 in words is "one trillion, two hundred twelve billion, two hundred ten million, one", and thus it is an aban number.