212522075 has 6 divisors (see below), whose sum is σ = 263527404. Its totient is φ = 170017640.

The previous prime is 212522059. The next prime is 212522137. The reversal of 212522075 is 570225212.

It is not a de Polignac number, because 212522075 - 2⁴ = 212522059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4250417 + ... + 4250466.

It is an arithmetic number, because the mean of its divisors is an integer number (43921234).

Almost surely, 2^212522075 is an apocalyptic number.

212522075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212522075 is a deficient number, since it is larger than the sum of its proper divisors (51005329).

212522075 is an equidigital number, since it uses as much as digits as its factorization.

212522075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500893 (or 8500888 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 212522075 is about 14578.1368837036. The cubic root of 212522075 is about 596.7622588885.

Adding to 212522075 its reverse (570225212), we get a palindrome (782747287).

The spelling of 212522075 in words is "two hundred twelve million, five hundred twenty-two thousand, seventy-five".