2212011222210 has 48 divisors (see below), whose sum is σ = 5808172064760. Its totient is φ = 584029363200.

The previous prime is 2212011222181. The next prime is 2212011222277. The reversal of 2212011222210 is 122221102122.

It is a happy number.

2212011222210 is a `hidden beast` number, since 221 + 2 + 0 + 11 + 222 + 210 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2160397289241 + 51613932969 = 1469829^2 + 227187^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121663695 + ... + 121681874.

Almost surely, 2^{2212011222210} is an apocalyptic number.

2212011222210 is an abundant number, since it is smaller than the sum of its proper divisors (3596160842550).

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

2212011222210 is a wasteful number, since it uses less digits than its factorization.

2212011222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243345683 (or 243345680 counting only the distinct ones).

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

Adding to 2212011222210 its reverse (122221102122), we get a palindrome (2334232324332).

The spelling of 2212011222210 in words is "two trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred ten".