102222221201212 has 24 divisors (see below), whose sum is σ = 206468644808160. Its totient is φ = 43375765713600.

The previous prime is 102222221201189. The next prime is 102222221201249. The reversal of 102222221201212 is 212102122222201.

It is a super-2 number, since 2×102222221201212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18073232887 + ... + 18073238542.

It is an arithmetic number, because the mean of its divisors is an integer number (8602860200340).

Almost surely, 2^{102222221201212} is an apocalyptic number.

It is an amenable number.

102222221201212 is an abundant number, since it is smaller than the sum of its proper divisors (104246423606948).

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

102222221201212 is a wasteful number, since it uses less digits than its factorization.

102222221201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36146471541 (or 36146471539 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102222221201212 its reverse (212102122222201), we get a palindrome (314324343423413).

The spelling of 102222221201212 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, two hundred twelve".