240211210212 has 36 divisors (see below), whose sum is σ = 617154672316. Its totient is φ = 78757773120.

The previous prime is 240211210171. The next prime is 240211210219. The reversal of 240211210212 is 212012112042.

240211210212 is a `hidden beast` number, since 240 + 2 + 1 + 1 + 210 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 63024094116 + 177187116096 = 251046^2 + 420936^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (240211210219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54690703 + ... + 54695094.

Almost surely, 2^240211210212 is an apocalyptic number.

It is an amenable number.

240211210212 is an abundant number, since it is smaller than the sum of its proper divisors (376943462104).

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

240211210212 is a wasteful number, since it uses less digits than its factorization.

240211210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109385868 (or 109385863 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 240211210212 its reverse (212012112042), we get a palindrome (452223322254).

The spelling of 240211210212 in words is "two hundred forty billion, two hundred eleven million, two hundred ten thousand, two hundred twelve".