212012122601 has 2 divisors, whose sum is σ = 212012122602. Its totient is φ = 212012122600.

The previous prime is 212012122549. The next prime is 212012122607. The reversal of 212012122601 is 106221210212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118956010000 + 93056112601 = 344900^2 + 305051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012122601 is a prime.

It is not a weakly prime, because it can be changed into another prime (212012122607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006061300 + 106006061301.

It is an arithmetic number, because the mean of its divisors is an integer number (106006061301).

Almost surely, 2^212012122601 is an apocalyptic number.

It is an amenable number.

212012122601 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012122601 is an equidigital number, since it uses as much as digits as its factorization.

212012122601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212012122601 its reverse (106221210212), we get a palindrome (318233332813).

The spelling of 212012122601 in words is "two hundred twelve billion, twelve million, one hundred twenty-two thousand, six hundred one".