1122221201211 has 20 divisors (see below), whose sum is σ = 1828804921944. Its totient is φ = 680134060800.

The previous prime is 1122221201209. The next prime is 1122221201261. The reversal of 1122221201211 is 1121021222211.

1122221201211 is a `hidden beast` number, since 11 + 22 + 221 + 201 + 211 = 666.

It is not a de Polignac number, because 1122221201211 - 2¹ = 1122221201209 is a prime.

It is a super-3 number, since 3×1122221201211³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122221201261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 629752870 + ... + 629754651.

Almost surely, 2^{1122221201211} is an apocalyptic number.

1122221201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122221201211 is a deficient number, since it is larger than the sum of its proper divisors (706583720733).

1122221201211 is a wasteful number, since it uses less digits than its factorization.

1122221201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259507544 (or 1259507535 counting only the distinct ones).

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

Adding to 1122221201211 its reverse (1121021222211), we get a palindrome (2243242423422).

The spelling of 1122221201211 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, two hundred eleven".