212100012200023 has 2 divisors, whose sum is σ = 212100012200024. Its totient is φ = 212100012200022.

The previous prime is 212100012199993. The next prime is 212100012200099. The reversal of 212100012200023 is 320002210001212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212100012200023 - 2³⁷ = 211962573246551 is a prime.

It is a super-2 number, since 2×212100012200023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100012206023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050006100011 + 106050006100012.

It is an arithmetic number, because the mean of its divisors is an integer number (106050006100012).

Almost surely, 2^{212100012200023} is an apocalyptic number.

212100012200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100012200023 is an equidigital number, since it uses as much as digits as its factorization.

212100012200023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212100012200023 its reverse (320002210001212), we get a palindrome (532102222201235).

The spelling of 212100012200023 in words is "two hundred twelve trillion, one hundred billion, twelve million, two hundred thousand, twenty-three".