212451024501 has 8 divisors (see below), whose sum is σ = 314742258560. Its totient is φ = 141634016316.

The previous prime is 212451024493. The next prime is 212451024503. The reversal of 212451024501 is 105420154212.

It is a happy number.

212451024501 is a `hidden beast` number, since 2 + 12 + 45 + 102 + 4 + 501 = 666.

It is not a de Polignac number, because 212451024501 - 2³ = 212451024493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7868556463 = 212451024501 / (2 + 1 + 2 + 4 + 5 + 1 + 0 + 2 + 4 + 5 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212451024503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934278205 + ... + 3934278258.

It is an arithmetic number, because the mean of its divisors is an integer number (39342782320).

Almost surely, 2^212451024501 is an apocalyptic number.

It is an amenable number.

212451024501 is a deficient number, since it is larger than the sum of its proper divisors (102291234059).

212451024501 is an equidigital number, since it uses as much as digits as its factorization.

212451024501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868556472 (or 7868556466 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 212451024501 its reverse (105420154212), we get a palindrome (317871178713).

The spelling of 212451024501 in words is "two hundred twelve billion, four hundred fifty-one million, twenty-four thousand, five hundred one".