1212212000001 has 16 divisors (see below), whose sum is σ = 1703378073600. Its totient is φ = 764695024848.

The previous prime is 1212211999991. The next prime is 1212212000047. The reversal of 1212212000001 is 1000002122121.

It is not a de Polignac number, because 1212212000001 - 2¹⁵ = 1212211967233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212212000201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12626121 + ... + 12721766.

It is an arithmetic number, because the mean of its divisors is an integer number (106461129600).

Almost surely, 2^{1212212000001} is an apocalyptic number.

It is an amenable number.

1212212000001 is a deficient number, since it is larger than the sum of its proper divisors (491166073599).

1212212000001 is a wasteful number, since it uses less digits than its factorization.

1212212000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25348748.

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

Adding to 1212212000001 its reverse (1000002122121), we get a palindrome (2212214122122).

The spelling of 1212212000001 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one", and thus it is an aban number.