2205240012 has 24 divisors (see below), whose sum is σ = 5717289200. Its totient is φ = 735079968.

The previous prime is 2205239999. The next prime is 2205240013. The reversal of 2205240012 is 2100425022.

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 (2205240013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10209337 + ... + 10209552.

Almost surely, 2^2205240012 is an apocalyptic number.

It is an amenable number.

2205240012 is an abundant number, since it is smaller than the sum of its proper divisors (3512049188).

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

2205240012 is a wasteful number, since it uses less digits than its factorization.

2205240012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418902 (or 20418894 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2205240012 is about 46959.9830919901. The cubic root of 2205240012 is about 1301.6232212660.

Adding to 2205240012 its reverse (2100425022), we get a palindrome (4305665034).

The spelling of 2205240012 in words is "two billion, two hundred five million, two hundred forty thousand, twelve".