212155411025452 has 12 divisors (see below), whose sum is σ = 371520644435136. Its totient is φ = 106006655472560.

The previous prime is 212155411025449. The next prime is 212155411025489. The reversal of 212155411025452 is 254520114551212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17762503324 + ... + 17762515267.

It is an arithmetic number, because the mean of its divisors is an integer number (30960053702928).

Almost surely, 2^{212155411025452} is an apocalyptic number.

It is an amenable number.

212155411025452 is a deficient number, since it is larger than the sum of its proper divisors (159365233409684).

212155411025452 is a wasteful number, since it uses less digits than its factorization.

212155411025452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35525020088 (or 35525020086 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

Adding to 212155411025452 its reverse (254520114551212), we get a palindrome (466675525576664).

The spelling of 212155411025452 in words is "two hundred twelve trillion, one hundred fifty-five billion, four hundred eleven million, twenty-five thousand, four hundred fifty-two".