212420510542052 has 12 divisors (see below), whose sum is σ = 371783086076220. Its totient is φ = 106196771663136.

The previous prime is 212420510542013. The next prime is 212420510542057. The reversal of 212420510542052 is 250245015024212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95655715579876 + 116764794962176 = 9780374^2 + 10805776^2 .

It is not an unprimeable number, because it can be changed into a prime (212420510542057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370866527 + ... + 3370929542.

It is an arithmetic number, because the mean of its divisors is an integer number (30981923839685).

Almost surely, 2^{212420510542052} is an apocalyptic number.

It is an amenable number.

212420510542052 is a deficient number, since it is larger than the sum of its proper divisors (159362575534168).

212420510542052 is a wasteful number, since it uses less digits than its factorization.

212420510542052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741803950 (or 6741803948 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 212420510542052 its reverse (250245015024212), we get a palindrome (462665525566264).

The spelling of 212420510542052 in words is "two hundred twelve trillion, four hundred twenty billion, five hundred ten million, five hundred forty-two thousand, fifty-two".