12210221022212 has 6 divisors (see below), whose sum is σ = 21367886788878. Its totient is φ = 6105110511104.

The previous prime is 12210221022187. The next prime is 12210221022257. The reversal of 12210221022212 is 21222012201221.

12210221022212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11157844592896 + 1052376429316 = 3340336^2 + 1025854^2 .

It is a super-2 number, since 2×12210221022212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526277627773 + ... + 1526277627780.

It is an arithmetic number, because the mean of its divisors is an integer number (3561314464813).

Almost surely, 2^{12210221022212} is an apocalyptic number.

It is an amenable number.

12210221022212 is a deficient number, since it is larger than the sum of its proper divisors (9157665766666).

12210221022212 is a wasteful number, since it uses less digits than its factorization.

12210221022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052555255557 (or 3052555255555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12210221022212 its reverse (21222012201221), we get a palindrome (33432233223433).

The spelling of 12210221022212 in words is "twelve trillion, two hundred ten billion, two hundred twenty-one million, twenty-two thousand, two hundred twelve".