2205312212 has 12 divisors (see below), whose sum is σ = 3860623956. Its totient is φ = 1102276800.

The previous prime is 2205312211. The next prime is 2205312271. The reversal of 2205312212 is 2122135022.

It can be written as a sum of positive squares in 2 ways, for example, as 657204496 + 1548107716 = 25636^2 + 39346^2 .

It is a super-3 number, since 3×2205312212³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205312211) 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, 81539 + ... + 105162.

It is an arithmetic number, because the mean of its divisors is an integer number (321718663).

Almost surely, 2^2205312212 is an apocalyptic number.

It is an amenable number.

2205312212 is a deficient number, since it is larger than the sum of its proper divisors (1655311744).

2205312212 is a wasteful number, since it uses less digits than its factorization.

2205312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189658 (or 189656 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2205312212 is about 46960.7518253275. The cubic root of 2205312212 is about 1301.6374262460.

Adding to 2205312212 its reverse (2122135022), we get a palindrome (4327447234).

The spelling of 2205312212 in words is "two billion, two hundred five million, three hundred twelve thousand, two hundred twelve".