212100012200007 has 12 divisors (see below), whose sum is σ = 306555916357080. Its totient is φ = 141312670255728.

The previous prime is 212100012199993. The next prime is 212100012200023. The reversal of 212100012200007 is 700002210001212.

It is a happy number.

It is not a de Polignac number, because 212100012200007 - 2¹⁰ = 212100012198983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100012200107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7278141088 + ... + 7278170229.

It is an arithmetic number, because the mean of its divisors is an integer number (25546326363090).

Almost surely, 2^{212100012200007} is an apocalyptic number.

212100012200007 is a deficient number, since it is larger than the sum of its proper divisors (94455904157073).

212100012200007 is a wasteful number, since it uses less digits than its factorization.

212100012200007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14556312942 (or 14556312939 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

Adding to 212100012200007 its reverse (700002210001212), we get a palindrome (912102222201219).

The spelling of 212100012200007 in words is "two hundred twelve trillion, one hundred billion, twelve million, two hundred thousand, seven".