222201112122212 has 6 divisors (see below), whose sum is σ = 388851946213878. Its totient is φ = 111100556061104.

The previous prime is 222201112122181. The next prime is 222201112122251. The reversal of 222201112122212 is 212221211102222.

222201112122212 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., 155453617354816 + 66747494767396 = 12468104^2 + 8169914^2 .

It is a super-2 number, since 2×222201112122212² (a number of 29 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, 27775139015273 + ... + 27775139015280.

It is an arithmetic number, because the mean of its divisors is an integer number (64808657702313).

Almost surely, 2^{222201112122212} is an apocalyptic number.

It is an amenable number.

222201112122212 is a deficient number, since it is larger than the sum of its proper divisors (166650834091666).

222201112122212 is a wasteful number, since it uses less digits than its factorization.

222201112122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55550278030557 (or 55550278030555 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222201112122212 its reverse (212221211102222), we get a palindrome (434422323224434).

The spelling of 222201112122212 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twelve".