212110242 has 8 divisors (see below), whose sum is σ = 424220496. Its totient is φ = 70703412.

The previous prime is 212110211. The next prime is 212110259. The reversal of 212110242 is 242011212.

It is a sphenic number, since it is the product of 3 distinct primes.

212110242 is an admirable number.

It is a super-2 number, since 2×212110242² = 89981509522597128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675848 + ... + 17675859.

It is an arithmetic number, because the mean of its divisors is an integer number (53027562).

Almost surely, 2^212110242 is an apocalyptic number.

212110242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212110242 is a wasteful number, since it uses less digits than its factorization.

212110242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35351712.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212110242 is about 14564.0050123584. The cubic root of 212110242 is about 596.3765337599.

Adding to 212110242 its reverse (242011212), we get a palindrome (454121454).

The spelling of 212110242 in words is "two hundred twelve million, one hundred ten thousand, two hundred forty-two".