222012221311 has 16 divisors (see below), whose sum is σ = 225921788928. Its totient is φ = 218138502400.

The previous prime is 222012221243. The next prime is 222012221317. The reversal of 222012221311 is 113122210222.

It is a cyclic number.

It is not a de Polignac number, because 222012221311 - 2⁹ = 222012220799 is a prime.

It is a super-2 number, since 2×222012221311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012221317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36314991 + ... + 36321103.

It is an arithmetic number, because the mean of its divisors is an integer number (14120111808).

Almost surely, 2^222012221311 is an apocalyptic number.

222012221311 is a deficient number, since it is larger than the sum of its proper divisors (3909567617).

222012221311 is a wasteful number, since it uses less digits than its factorization.

222012221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222012221311 its reverse (113122210222), we get a palindrome (335134431533).

The spelling of 222012221311 in words is "two hundred twenty-two billion, twelve million, two hundred twenty-one thousand, three hundred eleven".