1222201112211 has 12 divisors (see below), whose sum is σ = 1782880831680. Its totient is φ = 806733406800.

The previous prime is 1222201112191. The next prime is 1222201112281. The reversal of 1222201112211 is 1122111022221.

1222201112211 is a `hidden beast` number, since 122 + 220 + 1 + 112 + 211 = 666.

It is not a de Polignac number, because 1222201112211 - 2¹⁵ = 1222201079443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222201112281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672276931 + ... + 672278748.

It is an arithmetic number, because the mean of its divisors is an integer number (148573402640).

Almost surely, 2^{1222201112211} is an apocalyptic number.

1222201112211 is a deficient number, since it is larger than the sum of its proper divisors (560679719469).

1222201112211 is a wasteful number, since it uses less digits than its factorization.

1222201112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344555786 (or 1344555783 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1222201112211 its reverse (1122111022221), we get a palindrome (2344312134432).

The spelling of 1222201112211 in words is "one trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred eleven".