212412044501 has 2 divisors, whose sum is σ = 212412044502. Its totient is φ = 212412044500.

The previous prime is 212412044347. The next prime is 212412044513. The reversal of 212412044501 is 105440214212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211885296100 + 526748401 = 460310^2 + 22951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212412044501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212412044531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106206022250 + 106206022251.

It is an arithmetic number, because the mean of its divisors is an integer number (106206022251).

Almost surely, 2^212412044501 is an apocalyptic number.

It is an amenable number.

212412044501 is a deficient number, since it is larger than the sum of its proper divisors (1).

212412044501 is an equidigital number, since it uses as much as digits as its factorization.

212412044501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 212412044501 its reverse (105440214212), we get a palindrome (317852258713).

The spelling of 212412044501 in words is "two hundred twelve billion, four hundred twelve million, forty-four thousand, five hundred one".