212545402421324 has 24 divisors (see below), whose sum is σ = 425095390315680. Its totient is φ = 91089904150656.

The previous prime is 212545402421309. The next prime is 212545402421327. The reversal of 212545402421324 is 423124204545212.

It is not an unprimeable number, because it can be changed into a prime (212545402421327) 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, 38296667 + ... + 43493970.

It is an arithmetic number, because the mean of its divisors is an integer number (17712307929820).

Almost surely, 2^{212545402421324} is an apocalyptic number.

It is an amenable number.

212545402421324 is an abundant number, since it is smaller than the sum of its proper divisors (212549987894356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212545402421324 is a wasteful number, since it uses less digits than its factorization.

212545402421324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81883457 (or 81883455 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 41.

Adding to 212545402421324 its reverse (423124204545212), we get a palindrome (635669606966536).

The spelling of 212545402421324 in words is "two hundred twelve trillion, five hundred forty-five billion, four hundred two million, four hundred twenty-one thousand, three hundred twenty-four".