240211212 has 12 divisors (see below), whose sum is σ = 560492856. Its totient is φ = 80070400.

The previous prime is 240211193. The next prime is 240211217. The reversal of 240211212 is 212112042.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 240211191 and 240211200.

It is not an unprimeable number, because it can be changed into a prime (240211217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10008789 + ... + 10008812.

It is an arithmetic number, because the mean of its divisors is an integer number (46707738).

Almost surely, 2^240211212 is an apocalyptic number.

It is an amenable number.

240211212 is an abundant number, since it is smaller than the sum of its proper divisors (320281644).

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

240211212 is a wasteful number, since it uses less digits than its factorization.

240211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017608 (or 20017606 counting only the distinct ones).

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

The square root of 240211212 is about 15498.7487236873. The cubic root of 240211212 is about 621.6287490699.

Adding to 240211212 its reverse (212112042), we get a palindrome (452323254).

The spelling of 240211212 in words is "two hundred forty million, two hundred eleven thousand, two hundred twelve".