212601053775 has 24 divisors (see below), whose sum is σ = 383454993024. Its totient is φ = 103079298400.

The previous prime is 212601053773. The next prime is 212601053789. The reversal of 212601053775 is 577350106212.

It is a happy number.

It is not a de Polignac number, because 212601053775 - 2¹ = 212601053773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212601053773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128848299 + ... + 128849948.

It is an arithmetic number, because the mean of its divisors is an integer number (15977291376).

Almost surely, 2^212601053775 is an apocalyptic number.

212601053775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212601053775 is a deficient number, since it is larger than the sum of its proper divisors (170853939249).

212601053775 is a wasteful number, since it uses less digits than its factorization.

212601053775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257698271 (or 257698266 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

Adding to 212601053775 its reverse (577350106212), we get a palindrome (789951159987).

The spelling of 212601053775 in words is "two hundred twelve billion, six hundred one million, fifty-three thousand, seven hundred seventy-five".