212222221120212 has 48 divisors (see below), whose sum is σ = 517317439199232. Its totient is φ = 67633976406240.

The previous prime is 212222221120207. The next prime is 212222221120237. The reversal of 212222221120212 is 212021122222212.

It is a happy number.

It is a super-2 number, since 2×212222221120212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3436654918 + ... + 3436716669.

It is an arithmetic number, because the mean of its divisors is an integer number (10777446649984).

Almost surely, 2^{212222221120212} is an apocalyptic number.

It is an amenable number.

212222221120212 is an abundant number, since it is smaller than the sum of its proper divisors (305095218079020).

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

212222221120212 is a wasteful number, since it uses less digits than its factorization.

212222221120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6873371708 (or 6873371706 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 212222221120212 its reverse (212021122222212), we get a palindrome (424243343342424).

The spelling of 212222221120212 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twelve".