212212212260 has 24 divisors (see below), whose sum is σ = 445741947000. Its totient is φ = 84866541824.

The previous prime is 212212212259. The next prime is 212212212269. The reversal of 212212212260 is 62212212212.

It can be written as a sum of positive squares in 4 ways, for example, as 23689519396 + 188522692864 = 153914^2 + 434192^2 .

It is not an unprimeable number, because it can be changed into a prime (212212212269) 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, 1051385 + ... + 1236864.

It is an arithmetic number, because the mean of its divisors is an integer number (18572581125).

Almost surely, 2^212212212260 is an apocalyptic number.

212212212260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212212260 is an abundant number, since it is smaller than the sum of its proper divisors (233529734740).

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

212212212260 is a wasteful number, since it uses less digits than its factorization.

212212212260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292895 (or 2292893 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212212212260 its reverse (62212212212), we get a palindrome (274424424472).

The spelling of 212212212260 in words is "two hundred twelve billion, two hundred twelve million, two hundred twelve thousand, two hundred sixty".