212045512 has 32 divisors (see below), whose sum is σ = 454867200. Its totient is φ = 90779904.

The previous prime is 212045507. The next prime is 212045531. The reversal of 212045512 is 215540212.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82113 + ... + 84655.

It is an arithmetic number, because the mean of its divisors is an integer number (14214600).

Almost surely, 2^212045512 is an apocalyptic number.

It is an amenable number.

212045512 is an abundant number, since it is smaller than the sum of its proper divisors (242821688).

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

212045512 is a wasteful number, since it uses less digits than its factorization.

212045512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 212045512 is about 14561.7825831867. The cubic root of 212045512 is about 596.3158618812.

Adding to 212045512 its reverse (215540212), we get a palindrome (427585724).

The spelling of 212045512 in words is "two hundred twelve million, forty-five thousand, five hundred twelve".