212054144551 has 2 divisors, whose sum is σ = 212054144552. Its totient is φ = 212054144550.

The previous prime is 212054144543. The next prime is 212054144567. The reversal of 212054144551 is 155441450212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212054144551 - 2³ = 212054144543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212054144501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106027072275 + 106027072276.

It is an arithmetic number, because the mean of its divisors is an integer number (106027072276).

Almost surely, 2^212054144551 is an apocalyptic number.

212054144551 is a deficient number, since it is larger than the sum of its proper divisors (1).

212054144551 is an equidigital number, since it uses as much as digits as its factorization.

212054144551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 212054144551 its reverse (155441450212), we get a palindrome (367495594763).

The spelling of 212054144551 in words is "two hundred twelve billion, fifty-four million, one hundred forty-four thousand, five hundred fifty-one".