212001123127 has 2 divisors, whose sum is σ = 212001123128. Its totient is φ = 212001123126.

The previous prime is 212001123119. The next prime is 212001123137. The reversal of 212001123127 is 721321100212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212001123127 - 2³ = 212001123119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212001123098 and 212001123107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212001123137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000561563 + 106000561564.

It is an arithmetic number, because the mean of its divisors is an integer number (106000561564).

Almost surely, 2^212001123127 is an apocalyptic number.

212001123127 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001123127 is an equidigital number, since it uses as much as digits as its factorization.

212001123127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 212001123127 its reverse (721321100212), we get a palindrome (933322223339).

The spelling of 212001123127 in words is "two hundred twelve billion, one million, one hundred twenty-three thousand, one hundred twenty-seven".