212100021001201 has 2 divisors, whose sum is σ = 212100021001202. Its totient is φ = 212100021001200.

The previous prime is 212100021001133. The next prime is 212100021001223. The reversal of 212100021001201 is 102100120001212.

212100021001201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203973667344225 + 8126353656976 = 14281935^2 + 2850676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212100021001201 is a prime.

It is not a weakly prime, because it can be changed into another prime (212100021001801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050010500600 + 106050010500601.

It is an arithmetic number, because the mean of its divisors is an integer number (106050010500601).

Almost surely, 2^{212100021001201} is an apocalyptic number.

It is an amenable number.

212100021001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100021001201 is an equidigital number, since it uses as much as digits as its factorization.

212100021001201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212100021001201 its reverse (102100120001212), we get a palindrome (314200141002413).

The spelling of 212100021001201 in words is "two hundred twelve trillion, one hundred billion, twenty-one million, one thousand, two hundred one".