212242080 has 48 divisors (see below), whose sum is σ = 668564064. Its totient is φ = 56597760.

The previous prime is 212242073. The next prime is 212242099. The reversal of 212242080 is 80242212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220606 + ... + 221565.

It is an arithmetic number, because the mean of its divisors is an integer number (13928418).

Almost surely, 2^212242080 is an apocalyptic number.

212242080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212242080 is an abundant number, since it is smaller than the sum of its proper divisors (456321984).

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

212242080 is a wasteful number, since it uses less digits than its factorization.

212242080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442189 (or 442181 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 212242080 is about 14568.5304681014. The cubic root of 212242080 is about 596.5000682710.

Adding to 212242080 its reverse (80242212), we get a palindrome (292484292).

The spelling of 212242080 in words is "two hundred twelve million, two hundred forty-two thousand, eighty".